bluuebunny/crossref_metadata_2025 huggingface dataset:
An Examination of the Quantum Theories. IV
Authors: Malisoff William Marias
Published: November 2002

We pause in the process of exposition to note what continuity we may in the progress of the theories of discontinuity we have been discussing. The following trends are rather distinct: (1) the development of more and more general mathematical approaches, (2) a marked broadening of the field of experimental issues, and (3) an increasing attention to analysis of fundamental concepts, the philosophy of physics.
A Critique of the Species Concept in Biology
Authors: Dobzhansky Th.
Published: November 2002

The species concept is one of the oldest and most fundamental in biology. And yet it is almost universally conceded that no satisfactory definition of what constitutes a species has ever been proposed. The present article is devoted to an attempt to review the status of the problem from a methodological point of view. Since the species is one of the many taxonomic categories, the question of the nature of these categories in general needs to be entered into.
Psychology versus Immediate Experience
Authors: Tolman Edward Chace
Published: November 2002

In this paper I am going to try to indicate my notion concerning the nature and subject-matter of psychology. I am a behaviorist. I hold that psychology does not seek descriptions and intercommunications concerning immediate experience per se. Such descriptions and attempts at direct intercommunications may be left to the arts and to metaphysics. Psychology seeks, rather, the objectively stateable laws and processes governing behavior. Organisms, human and sub-human, come up against environmental stimulus situations and to these stimulus situations they, after longer or shorter intervals of time, behave. The laws and processes determining this their behavior are stateable in objective terms. Even in the cases where the organism is oneself, these determining causal factors can and must—for the purposes of psychology—be stated objectively. It is true that in these latter instances, in which the animal in question is oneself, one may in one's rôle, not of a psychologist, but of an artist or a metaphysician, attempt to describe and convey to another man one's own facts of immediate experience. But such a description and report of immediate experiences, except in so far as this report is itself a form of behavior and therefore like all other behaviors the basis for an investigation of the objective laws and processes underlying it, essentially new to the picture. Experience qua experience, while of concern and interest to the man in the street, the philosopher and the poet, does not enter as such into the laws and equations of psychology,—in so far, at any rate, as psychology is to be considered as a science.
Are There Ultimate Simples?
Authors: Weinberg Julius R.
Published: November 2002

In the course of modern philosophy, there have been several attempts to demonstrate the existence of ultimately simple objects by purely logical methods. One of the most recent of such attempts forms part of the foundation of Wittgenstein's logical doctrine. As Wittgenstein has, until quite recently, been considered the authoritative source of Logical Positivism, an examination of his supposed demonstration of logical simples is propaedeutic to an evaluation of the method of the school.
On the Problem of a Unified Physical Theory of Matter
Authors: Kolman E.
Published: November 2002

In the following, limiting ourselves to two objects—the processes X and Y—we will compare three kinds of regularities in their specific manifestation in physics: (1) interaction; (2) causality; and (3) functional dependence. In considering as objective all the regularities which are inherent in things and material processes themselves, and in considering causality and functional dependence merely as one-sided abstractions of interaction, which in its turn is an abstraction from the universal interconnection of things, we avoid such an arbitrary definition of causality as, for instance, the possibility of exact prognosis which leads to the negation of causality. We also avoid placing functional dependence above causality.
Outline of a Mathematical Theory of Human Relations
Authors: Rashevsky N.
Published: November 2002

In our previous writings we have outlined a mathematical theory of biological phenomena. In our systematic construction of “mathematical biology,” similar in its aims to mathematical physics, we have started with the fundamental unit,—the living cell. After having established a physico-mathematical theory of the fundamental properties of the cell, we have studied the interaction of several cells. This led us into two different fields. On the one hand we studied such interactions of cells, which determine the form of cellular aggregates, constituting multicellular organisms. On the other hand we studied different types of functional interactions, which determine the reactions of the aggregate as a whole to different environmental changes. While the first field leads us eventually to the theory of organic form, the second brings us to the physico-mathematical theory of behavior.
The Techniques, Basic Concepts, and Preconceptions of Science and Their Relation to Social Study
Authors: Mayer Joseph
Published: November 2002

The necessity for a clear understanding of the dual character of scientific method (verified observation on the one hand and theoretical analysis on the other) and of its applicability in social study as in the physical and biological sciences, can hardly receive too much emphasis at the present stage of development. Such an understanding, however, merely provides the proper beginning or orientation in the organization of any scientific discipline. That which is a common element in all scientific procedure can hardly serve to differentiate one science from another.
Law as a Social Science
Authors: Cairns Huntington
Published: November 2002

It is the contemporary belief, in American legal circles at all events, that law or jurisprudence, whatever it may have been in the past, has now the status of a social science. This is an assumption easier to make than to substantiate, and in view of the increasing insistence upon this point, it is now appropriate to inquire whether or not it possesses a tangible foundation. This requires a consideration of the distinctive characteristics of social science, the determination whether or not jurisprudence exhibits these characteristics, and, if not, if it is possible for it to assume them. It will be convenient to begin, briefly and concisely, with an examination of the characteristics of modern legal thought.
Linguistic Aspects of Science
Authors: Bloomfield Leonard
Published: November 2002

Scientific method interests the linguist not only as it interests every scientific worker, but also in a special way, because the scientist, as part of his method, utters certain very peculiar speech-forms. The linguist naturally divides scientific activity into two phases: the scientist performs “handling” actions (observation, collecting of specimens, experiment) and utters speech (report, classification, hypothesis, prediction). The speech-forms which the scientist utters are peculiar both in their form and in their effect upon hearers.
On Space and Time as Attributes of Nature and Forms of Experience
Authors: Lapan Arthur
Published: November 2002

What can we say of space and time when we consider them as attributes of nature and as attributes of nature in the context of experience? The following is an examination of this question in the light of those portions of the writings of Locke and Kant which were concerned with it. Since men have no difficulty in speaking about and utilizing the familiar spatial and temporal relations of things, we begin with these and shall avoid definition and debate except insofar as it is pertinent to the present inquiry. Nor shall we consider it necessary to examine space and time in any other context as, for example, that of modern physics. The familiar world is the necessary condition for the conception of any intellectual development of it, and to begin with the intellectual development is to render it unintelligible. This is evidenced in several ways. When we begin with physics and mathematics, we cannot account for the world within which we live and consequently end in scepticism about it, whereas this is not the case when we begin with the actual world itself. Furthermore, the manifestly perceptible is indispensible to scientific enquiry for we must employ instruments and objects directly accessible to experience. Without these there would be neither experiment, observation nor inference. Communication would be impossible without it as well as discussion about subject matters such as logic and esthetics. It is for these reasons, therefore, that we begin with the familiar spatial and temporal relations of things.
Things and Potentiality
Authors: Miller David L.
Published: November 2002

In Physical Theory Mr. Lenzen writes, “Thus the concept of thing is the concept of a class of aspects which are in the past, present, or future for several minds.” Again, in Mind and the World-Order, Mr. Lewis defines “thing” as “… a complex of properties or qualities, recognizable by some uniformity of appearance.” Without questioning the metaphysics implied in these two definitions of “thing” I shall accept them as quite compatible and as useful in defining the rôle of experience in the construction of scientific objects. If in “Pragmatism and Metaphysics” Mr. Morris has not established proof of the existence of objects independent of any and all experience of them, he certainly has shown conclusively that the possibility of experiencing objects is independent of any and all observers.
Organismic Logic in the History of Science
Authors: Wheeler Raymond Holder
Published: November 2002

The logical pattern underlying twentieth century science is strikingly uniform from physics through biology and psychology to social science. Our purpose will be to analyze and illustrate this pattern, to trace its development, especially from the Middle Ages to the present time, and to suggest some possible consequences for the future.
A Note on Parsimony
Authors: Nelson Everett J.
Published: November 2002

In this paper I wish to offer a suggestion in support of the thesis that if a given set of facts is explained by two rival explanations A and B, where A consists of a single hypothesis H1, and B consists of at least two independent hypotheses H2 and H3, then, other things being equal, A is more probable than B. That this view is true is seldom questioned, though I have never seen any reason given for it, which would justify the methodological value so many philosophers attribute to it. It is not my purpose to discuss simplicity of explanation in general, but simply to point out that the Multiplicative Axiom of the calculus of probabilities justifies the above thesis. I shall call this thesis the Principle of Parsimony.
Postulational Methods. II
Authors: Kattsoff Louis Osgood
Published: November 2002

In this study we shall analyze the postulate set into its various elements. In order to carry out our analysis, it is advisable to have before us a typical set.

We take the set of five postulates for Boolean Algebras given by H. M. Sheffer in Trans. Am. Math Soc. 14, p. 482 ff.
Psychology: The Propaedeutic Science
Authors: Stevens S. S.
Published: November 2002

Previous claims that psychology is propaedeutic to the other sciences have been met with enthusiastic indifference. Contributing to this indifference has been the fact that psychology, a young and unproved discipline which habitually borrowed the methods of the older sciences, has too frequently revised its notion as to its own nature and subject-matter. More important, however, has been the faith of the physical sciences in the absolute character of their own basic concepts: in the reality of Absolute Space and Absolute Time and in the universality of deterministic principles, for, as long as physics presumed to deal with entities which are what they are regardless of the nature of man, nothing other than these entities appeared to demand prior consideration. The problem of the nature of the observer in the physical experiment became important to physics only as a consequence of the recent ‘subjective’ revolution. It is this revolution which has revitalized the problem of the propaedeutic science and has accentuated the distinction which we must make between the behavioral phenomenon of individuals creating formal arrays of words or symbols which are without operational meaning and the discriminatory responses, or operations, by which the empirical meaning of such arrays is determined.
The Law of Transitivity
Authors: Smith H. B.
Published: November 2002

In this section we shall publish brief communications commenting on published papers or bringing up special points of interest which can be discussed by correspondence.
On an Empirical Criterion of Meaning
Authors: Fries Horace S.
Published: November 2002

In view of the importance of the philosophical method argued in Mr. C. I. Lewis's “Experience and Meaning,” I wish to call attention to ambiguities which may have an important bearing on one of his conclusions. The method for which he argues is a certain empirical test of meaningfulness. It is his ‘positivistic’ inference from this method which I wish to challenge. To do so I shall present four points: (1) A summary of his empirical test of meaningfulness; (2) A ‘non-positivistic’ (or ‘dualistic’) hypothesis which Mr. Lewis rejects; (3) An analysis of this hypothesis in view of his test; (4) The theory of universals implied in my analysis.
Are Some Propositions Neither True Nor False?
Authors: Baylis Charles A.
Published: November 2002

Though some doubts about the principle that every proposition is either true or false were entertained even by Aristotle, both the number and the vigor of criticisms of this principle have been increasing in recent years. This paper attempts a restatement and a re-examination of the issues involved in this dispute, and in particular an evaluation of the effects on the argument of such recent discoveries as that of the “many-valued logics.”
The Structure of the Proposition and the Fact
Authors: Wohlstetter Albert
Published: November 2002

For the most part, this paper is an attempt to understand such a statement as this: “The proposition represents the fact by virtue of a structural identity between it and the fact.” The statement is a familiar and important one in modern philosophy. It is, for example, one of the tenets of Logical Positivism.
Consistency and Independence in Postulational Technique
Authors: Emch Arnold F.
Published: November 2002

Despite the skepticism of many mathematicians and logicians as to the possibility of any test which will show conclusively the consistency or independence of the members of a postulate set, several methods have nevertheless been devised and employed, e.g., the empirical methods of Russell and Huntington, the internal method of Hilbert, and the reflective method of Royce. However, with the possible exception of Hilbert's method (which is still available only in the form of fragments and suggestions), these techniques require us to forsake the purely formal or abstract mode of analysis, and instead to rely in some sense on “concrete representations” or “interpretations” or “modes of action” which are said to “satisfy” the postulates in question. In short, they are all interpretational methods—and here is the crux of the problem. “Is it possible,” queries Weiss, “that the only way we can determine whether a set is consistent is by seeing all the postulates actually exemplified in some object? If so, we must arbitrarily assume that the object is self-consistent, so that the proof of consistency must ultimately rest on a dogma. As independence rests on consistency there are therefore no satisfactory proofs as yet of either independence or consistency.” The question “is thus answered,” according to Young, “only by reference to a concrete representation of the abstract ideas involved, and it is such concrete representations that we wished especially to avoid. At the present time, however, no absolute test for consistency is known.” Moreover, “suppose,” says the late Dr. Eaton, “that the system has no interpretation: how can the consistency (and) independence … of the postulates be shown? There should be some analytic way—purely in the realm of the abstract, without interpretation—of establishing these properties of a set of postulates. This is an important problem that awaits solution.”
A Detail in Kronecker's Program
Authors: Bell E. T.
Published: November 2002

It was Kronecker who sought to avoid the use in mathematics of all numbers (negatives, fractions, irrationals) other than the positive integers, and he outlined the means for carrying through this program. In the introductory sections of his memoir he briefly indicates the personal philosophy which made such a project appear desirable.
Leibniz' Theory of Matter
Authors: Irving J. A.
Published: November 2002

The historic task of Leibniz was to furnish a philosophy of personality, and at the same time, and in harmony with it, a general interpretation of the physical world. He conceives therefore of a plurality of Real Beings which in their most developed form he proposes to call individuals, defining individuality in terms of unique experience. Further, he finds the monads, or so-called metaphysical points, to be centres of life, held together by their own inner or intensive force and therefore impenetrable. Consequently, when we enquire whether the Real Beings are parts of the universe, we find that since the universe is the aggregate of monadic forces, all Real Being is finite, and so in order to deal with the problem of Theism we have to reconcile the concept of divine personality with what we may define as personality in the case of human beings.
The Philosophical Significance of the Concept of Probability in Quantum Mechanics
Authors: Northrop F. S. C.
Published: November 2002

A striking characteristic of contemporary science is its emphasis upon probability. This is especially notable in quantum mechanics.

There is a respect in which probability is the same for all scientific theories. Verifiability requires that any theory predict certain numbers which can be compared with the numbers gained by actual operations of measuring. In actual practice these numbers, which we shall term theoretical measurables and operative measurables respectively, never correspond. It becomes necessary, therefore, for the scientist to specify when the deviation between them is such that verification occurs. These specifications are defined by the theory of errors in which the concept of probability has an essential place and a specific meaning. But the theory of errors is the same for all applications; hence, probability as defined by the theory of errors is the same for all scientific theories.
The Inductive Argument for an External World
Authors: Nelson Everett J.
Published: November 2002

Metaphysical problems may be solved by the methods of inference employed in the empirical sciences. So we are told by many realists and pragmatists, among whom may be mentioned Professors J. B. Pratt, William Savery, and Donald Williams. Mr. Williams and Mr. Pratt have argued for the use of inductive methods in establishing the existence of an external world. Mr. Savery has asserted that all philosophical inference as to matter of fact is inductive. This naturalistic attitude is by no means unusual—in fact it is so common in this age in which the speculations of scientists as well as their achievements have captivated the popular imagination, that even philosophers have for the most part failed to examine its validity and presuppositions. It is the purpose of this paper to present such an examination, not of the philosophic employment of inductive methods in general, but in regard to one specific problem; namely, that of the existence of an external world. What I purpose then is to present and evaluate the view that the existence of an external world may be established by inductive methods as employed in the empirical sciences.
Outlines of an Empirical Theory of Meaning
Authors: Benjamin A. Cornelius
Published: November 2002

In what follows I shall consider symbols only in their function as conveyors of meanings. That symbols have emotive and volitional properties as well, that they have elaborate and complicated relations to the self which uses them, that they are themselves physical counters, i.e., noises, visual objects, etc.,—all of these facts I recognize but choose to neglect. When symbols are considered merely as instruments for the transfer of meanings, only one important assumption is involved, viz., symbols which are precisely defined are to be preferred to symbols which either are undefined or are defined inadequately. In other words, the task of a theory of meaning is that of showing how symbols take on a maximum degree of precision in significance.
Purpose, Design and Physical Relativity
Authors: Miller David L.
Published: November 2002

In a recent issue of Philosophy of Science Merrit H. Moore contends that it is not only possible but methodologically desirable to separate design in nature from purpose. The main part of his argument is devoted to a support of the proposition that “design” is objective, by which he means that design in the physical world is independent of mind. That which gives interest to Mr. Moore's argument is essentially the Kantian doctrine that the forms of the understanding, and consequently of knowledge, are furnished by the mind and are, in a sense, imposed upon sense-experience thereby making them rational. In contrast to the Kantian view stands the Humean doctrine that knowledge is analyzable into and limited by sense-impressions.
The Logic of Science and Technology
Authors: Norris O. O.
Published: November 2002

The logician has not been conspicuous for his contributions to scientific knowledge, nor has the scientist been noted for his knowledge of logic. One might readily infer from these observations that there is no necessary connection between science and logic, but I think he would be in error. As one who makes no claim to being either a scientist or a logician, I am perhaps well qualified to say something significant about the logic of science!
The Quest for a Lost Universe
Authors: Gruen William
Published: November 2002

So much has been written recently about the marvelous developments in mathematical physics, that we have almost forgotten that the amazing progress of science in the twentieth century was made possible as much by the skill and machinery of the instrument maker as by the genius of the theoretical physicist. The two greatest achievements of modern physics, the relativity theory and the quantum theory, are magnificient examples of the power of experimental instruments to disclose new possibilities and new realms of theoretical study.
Pseudo-Scientific Economic Doctrine
Authors: Mayer Joseph
Published: November 2002

As a concrete extension of analyses of scientific method and social study already undertaken in the pages of this journal and elsewhere, the present article will endeavor to clarify certain long-standing preconceptions in classical and neo-classical economic doctrine which still persist and which, in the light of 20th century methodology, can be given no other label than that of pseudo-scientific. These preconceptions revolve primarily about the ideas of “value,” “cost,” “utility,” and “price,” which ideas have suffered little change to the present day and which even early writers recognized as being vague and ambiguous.
Postulational Methods. III
Authors: Kattsoff Louis Osgood
Published: November 2002

We now proceed to define certain terms which we shall apply to sets of axioms and derive a few properties. A great deal of what follows in this section is still based on a two-valued logic, while our criticism of the usual independence and consistency proofs is based on an n-valued logic. The necessary alterations are now being worked out by the author.
Testability and Meaning
Authors: Carnap Rudolf
Published: November 2002

Two chief problems of the theory of knowledge are the question of meaning and the question of verification. The first question asks under what conditions a sentence has meaning, in the sense of cognitive, factual meaning. The second one asks how we get to know something, how we can find out whether a given sentence is true or false. The second question presupposes the first one. Obviously we must understand a sentence, i.e. we must know its meaning, before we can try to find out whether it is true or not. But, from the point of view of empiricism, there is a still closer connection between the two problems. In a certain sense, there is only one answer to the two questions. If we knew what it would be for a given sentence to be found true then we would know what its meaning is. And if for two sentences the conditions under which we would have to take them as true are the same, then they have the same meaning. Thus the meaning of a sentence is in a certain sense identical with the way we determine its truth or falsehood; and a sentence has meaning only if such a determination is possible.
The Positive and the Logical
Authors: Bentley Arthur F.
Published: November 2002

One is tempted to look upon the positive and the logical somewhat as one looks upon the quick and the dead. Yet the issue is hardly that sharp. Viability has strange possibilities and varied forms, and must often be appraised with an eye directed as much towards the environment as towards the claimant organism. Stretching the application of the word ‘viable’ to complexes of behavior such as the philosophies and theories of knowledge, we may ask: Is the combination of the positive and the logical in logical positivism viable? And is this logical positivism itself as it stands either positive or logical?
Physical Continuity
Authors: Fitch Frederic B.
Published: November 2002

Mathematical continuity, in the technical sense, is a precisely definable mathematical notion which refers to certain properties of numbers and number sequences. The continuity of the physical world, on the other hand, is rather different from mathematical continuity, since it is a directly experienced attribute of nature and does not require, for being understood, any mathematical theory of properties of numbers.
The Theory of Continuity of William of Ockham
Authors: Birch T. Bruce
Published: November 2002

Ockham realized the value of a careful study and application of the mathematical theory of continuity, even though he possessed no conclusive empirical evidence that it adequately explained the continuity experienced in the world of sense. He also clearly perceived a relation of continuity to infinity, since continuity, as a property of an order which is possible only to a series of terms, must have an infinite number of terms. “A continuous series must have an infinite number of terms.”
Renegade Instances
Authors: Aldrich V. C.
Published: November 2002

Attention has been drawn, particularly since Kant, to propositions which can not have negative instances. They used to be called a priori, axioms, first principles. Today, they are usually called postulates—C. I. Lewis uses both the old and new terminology—because there is a growing recognition of the fact that at least some of them are not “necessary” in the traditional sense. Kant placed a limitation on the apriorism of the continental rationalists. Current epistemologists and logicians have outstripped Kant in the direction signalled by him. Both he and they, however, concur in the opinion that apriori propositions are subject to negation of a sort. The Kantian dinge-an-sich, though they can not contradict these propositions by being negative instances of them, do nevertheless stand to them in the relation of insubordination, thereby exerting on them a “negative action” of a sort. And, according to current views, there are instances which, though they fall outside the range of significance of a proposition or system and hence can not contradict it, do nevertheless tend to bring about a revision of it by a negative action of some sort. The purpose of this brief essay is to coin a convenient name for such instances and to describe certain properties of their peculiar negative action.
Pseudo-Scientific Economic Doctrine—Continued
Authors: Mayer Joseph
Published: November 2002

The analyses thus far undertaken of cost theory and utility theory have viewed these doctrines as they originally were, namely, as the contentions of two conflicting groups of value theorists. And had the two rival groups been allowed to continue to match strength on the plane on which Macvane, for example, contended, the result would probably have been the destruction of them both. Underneath surface conflicts, however, the rival theories had much in common. As the twentieth century got under way, this state of affairs was discerned, with the result that in the end there was hand-shaking and backslapping all around and the inauguration of a live-and-let-live policy. Although at first regarding each other as mortal enemies, these two groups of price-determination theorists later came to see in one another something resembling blood kinship. But are the underlying assumptions which classicism and neoclassicism have in common any more realistic and scientific than the specific assumptions already examined? This is a question to which we now turn.
The Algebra of Propositions
Authors: Smith H. B.
Published: November 2002

It is proposed in this paper to develop a method by which the most general problem of the algebra of propositions is solved. This problem is to construct all propositions whose truth is independent of the form of the variables. As might be expected this method will enable us to determine without the use of matrices the consistency and independence of propositions, except in the case of those fundamental properties, which taken together define consistency itself. In the discussion which follows no limitations are placed on the meaning of the terms and the word proposition is used simply in the sense of a variable. If we were to say, for example, that our variables must be restricted to zero or one values, we would be introducing a limitation which would reduce the generality of our science. A logic may be false in the sense that its postulates lead to contradictory theorems, or it may be false in the sense that it lacks generality, and the situation is not saved by calling it a two-valued, or a three-valued logic, or a logic of “propositions,” or by designating it by some other euphuism.
Testability and Meaning—Continued
Authors: Carnap Rudolf
Published: November 2002

It is not the aim of the present essay to defend the principle of empiricism against apriorism or anti-empiricist metaphysics. Taking empirism for granted, we wish to discuss, the question what is meaningful. The word ‘meaning’ will here be taken in its empiricist sense; an expression of language has meaning in this sense if we know how to use it in speaking about empirical facts, either actual or possible ones. Now our problem is what expressions are meaningful in this sense. We may restrict this question to sentences because expressions other than sentences are meaningful if and only if they can occur in a meaningful sentence.
The Mechanical versus the Mathematical Conception of Nature
Authors: Frank Philipp
Published: November 2002

When science of the 20th century is spoken of in opposition to that of the 19th century, a particularly characteristic attribute is often cited: namely, that since the time of Galileo and Newton the task of science has been to explain everything mechanistically. By analogy the world was to be conceived as a great machine. But the theories of the 20th century, above all the relativity and quantum theories, caused a revolution in science. It is seen today that nature can be described and understood not ‘mechanistically’ but only through abstract mathematical formulas. The world is no longer a machine but a mathematical formula.
The Lodestone and the Understanding of Matter in Seventeenth Century England
Authors: Chalmers Gordon Keith
Published: November 2002

Columbus and Galileo are usually considered the prime revolutionaries whose discoveries in the physical world brought on the spiritual revolution in modern life, but during the first full century of the modern world another discoverer was so regarded by Sir Thomas Browne. In the “experiments, grounds, and causes,” of the compass needle, he said, Dr. William Gilbert “discovered more in it than Columbus or Americus ever did by it.” Like Columbus, Gilbert made his discovery unwittingly. The navigator had been in search of Asia when he found a new continent; the doctor in seeking a reason for magnetic action led men's attention to reasoning on a new theory of Matter. Through his magnetical researches, the old logical conception of a continuous, soul-animated matter held by the conservative doctors and alchemists was discredited. The discoveries of all three, Columbus, Galileo, and Gilbert, were in many ways interrelated, and of course no single mind released the curiosities of the modern world unaided. What the scientists had to find out in their own laboratories and their own reasoning was persuasive evidence that matter is divorced from spirit, and for a time in the seventeenth century some of the fundamental hypotheses which indicated the divorce derived from magnetism.
The Pragmatism and Scientific Metaphysics of C. S. Peirce
Authors: Leonard Henry S.
Published: November 2002

The fifth volume of the Collected Papers of C. S. Peirce, entitled Pragmatism and Pragmaticism, contains papers dealing with two distinguishable, but interconnected doctrines: Pragmatism and Critical Common-sensism. The latter, antedating in its earliest expositions the first formulation of the pragmatic doctrine in 1877, 8, is however later conceived by Peirce as a consequence of pragmatism. The two doctrines will be advisedly treated here in isolation, and first pragmatism.
Foundations of Probability in Mathematical Logic
Authors: Hailperin Theodore
Published: November 2002

It is the purpose of this paper to present a theory of probability derived from two-valued logic—the logic of which an aspect is given in Part I, Section A, of Principia Mathematica. The symbolic system of Mr. Keynes, given in his Treatise on Probability, will be shown to be a part of our system. We have, however, little if anything in common with his philosophical analysis; a definition of Keynes’ fundamental probability relation, free from psychological or material reference, will be given, enabling us to offset some of the objections to his theory.
The Meaning of Simplicity in Physics
Authors: Lindsay R. B.
Published: November 2002

In the fourteenth century William of Occam in the course of his attack on the medieval scholastic philosophy enunciated his famous “razor”: Entia non sunt multiplicanda praeter necessitatem (hypotheses should not be multiplied unnecessarily). This is the classic claim for the description of nature in terms of the minimum possible number of fundamental concepts. It was presumably so recognized by Newton in the third book of his “Principia” in 1687 when he wrote: “We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. To this purpose the philosophers say that Nature does nothing in vain, and more is in vain when less will serve; for Nature is pleased with simplicity and affects not the pomp of superfluous causes.”
Some Dangers Connected with Mathematical Applications
Authors: Senior James K.
Published: November 2002

Of recent years there have appeared in the literature several attempts to apply to the subject matter of chemistry mathematical theories which had not thitherto found any use in that field. With the spirit and purpose of such attempts, the author of this paper is thoroughly in sympathy. But some of the investigators who have undertaken this kind of pioneer work in applied mathematics have apparently entered upon their tasks without appreciating the difficulties involved, and have hence produced results more likely to obscure than to clarify their subjects.
The Measurement of Time: A First Chapter of Physics
Authors: Richmond Carl A.
Published: November 2002

At a certain stage of advance in any science it may be well to re-examine and perhaps to rearrange its fundamentals. One seeks an ideal, logical order of development, which may or may not be the best pedagogical order. Many a high school beginner in physics has become acquainted with “force” as something that gets in between two bodies of matter and pulls them together or pushes them apart, like himself between two carts or like “magnetism” between two magnets. Whether or not this might ever be a proper view, the mature student of today will consider that for him, a knowledge of accelerations and strains, inter alia, is prerequisite to a knowledge of force.
Directive Action and Life
Authors: Lillie Ralph S.
Published: November 2002

When we consider closely any highly integrated vital process, like embryonic development, or animal behavior of the end-subserving or purposive type, we are inevitably impressed with the importance of those special controlling factors, collectively termed “regulative,” which appear chiefly responsible for the unified and finalistic character of the whole sequence of events. These factors are persistent in their influence although they may act intermittently. Without their presence the sequence would soon lose coördination and “run wild,” just as an automobile runs off the road unless occasional compensating touches are given to the steering wheel. They are the factors which give unity and direction to the total process. Generalizing, we may say that in any complex unified process, especially a synthetic one—where the progress is from less to greater complexity—integration seems always to imply or presuppose the operation of regulative factors having the character which we call directive. These keep the sequence of events to a definite course which in the living organism usually terminates in some outcome having special biological significance, or survival value.
Psychology as a Science of Objective Relations
Authors: Brunswik Egon
Published: November 2002

There is sufficient evidence from more recent experiments in psychology that equal retinal stimulus-elements do not lead to equal experiences and reactions except under certain rather specific conditions. An unsophisticated observer will find himself surprised to be able to cover with his own finger a person entering the door of his living room. When the finger is moved to the right or left, thus doing away with the precise retinal coincidence with the person, the observer will soon become unable to recognize intuitively the actual retinal stimulus equality of the two distant things. This usually holds even for the case when he is making every inner effort towards an antagonistic, analytic perceptual attitude of the type which is used by painters or draughtsmen in order to represent the environmental situation in a similar way as it would project itself on a photographic plate or on a retina.
Unified Science and Its Encyclopaedia
Authors: Neurath Otto
Published: November 2002

The movement for the Unity of Science has been making headway for a number of years, and each year more workers in the various scientific domains have expressed their interest in it by participating in the discussion of its aims and its specific problems. A characteristic feature of this movement which explains this growing interest is that it does not propose a “super-science” which is to legislate to the special sciences. Its proposal of a Unity of Science is of a different kind, not based upon some grand metaphysical view of any sort. Those who are active within this movement are emphatic in their insistence that instead of aiming at a synthesis of the different sciences on the basis of a prior and independent philosophy, the special sciences will themselves supply their own synthesizing glue. For appreciating the significance of this movement it is therefore necessary to keep in mind that its tendency is toward a unified science, departmentalized into special sciences, and not toward an artificial and speculative juxtaposition of an autonomous philosophy and an autonomous group of sciences.
Causality and Complementarity
Authors: Bohr Niels
Published: November 2002

On several occasions I have pointed out that the lesson taught us by recent developments in physics regarding the necessity of a constant extension of the frame of concepts appropriate for the classification of new experiences leads us to a general epistemological attitude which might help us to avoid apparent conceptual difficulties in other fields of science as well. Since, however, the opinion has been expressed from various sides that this attitude would appear to involve a mysticism incompatible with the true spirit of science, I am very glad to use the present opportunity of addressing this assembly of scientists working in quite different fields but united in their striving to find a common ground for our knowledge, to come back to this question, and above all to try to clear up the misunderstandings which have arisen.
The New Logic
Authors: Menger Karl
Published: November 2002

The rapid development of physics, the result of observations made and ideas introduced within the last few decades, has brought about a change in the whole system of physical concepts. This fact is common knowledge, and has already attracted the attention of philosophers. It is less well known that geometry too has had its crises, and undergone a reconstruction. For centuries, so-called “geometrical intuition” was used as a method of proof. In geometrical demonstrations, certain steps were allowed because they were “self-evident,” because the correctness of the conclusion was “shown by the adjoined diagram,” etc. A crisis occurred in geometry because such intuition proved to be untrustworthy. Many of the propositions regarded as self-evident or based upon the consideration of diagrams turned out to be false. And so Euclidean geometry was reconstructed by methods free from all intuitive elements and strictly logical in nature. Moreover, for more than a century, various other geometries have been devised purely as logical constructions. Since they start with assumptions different from those of Euclid, and lead to conclusions partly in contradiction with his theorems, they are called “non-Euclidean.” Nevertheless, each one of these geometries is a closed system of propositions exempt from contradiction. Recently, some of them have even found application in physics.
Critical Points in Modern Physical Theory
Authors: Margenau Henry
Published: November 2002

Recent discussions in the physical literature, designed to clarify the logical position of modern physical theory, have brought to light an amazing divergence of fundamental attitudes which may well bewilder the careful student of physics as well as philosophy. Quantum mechanics, representing an abstract formalism, should be capable of having its logical structure analyzed with great precision like any other mathematical discipline. Its consequences in all problems to which its method can be applied are so unambiguous, consistent, and successful in predicting physical experience as to disperse immediately all thoughts of possible discrepancies in its fundamental texture. Yet it must be said that even the founders of quantum theory are not in harmony in their various expositions of the bases of that theory. However, while this situation seems disquieting on the face of it, there is no cause for serious brow raising, for it is a fact that there exists agreement with regard to the central axioms of the theory, and that the ambiguities affect only their philosophical interpretation, a field in which differences of opinion may at present be honestly entertained.
Objectivity in the Social Sciences
Authors: Bisbee Eleanor
Published: November 2002

To be scientific is to be objective. This is a sine qua non in the social scientists’ efforts to keep their researches on a par with those of the natural scientists. The extreme differences of subject matter in the two fields, however, make it difficult to maintain an even standard of objectivity. Whether objectivity is defined in the strict Cartesian sense or in a broader sense also makes a difference. The Cartesian meaning threatens to enslave the social sciences to Physics as the Lord of All Sciences, and this possibility is so familiar that it needs but brief comment. A broader interpretation of objectivity meets with complications which are only inadequately recognized as yet, and which may call for reinterpretation of the scope of science or else may open up new and independent avenues of opportunity beyond the limitations of science.
DesCartes’ Method of Doubt
Authors: Aldrich Virgil C.
Published: November 2002

Lord Acton, in his letter to the contributors to the Cambridge Modern History, wrote: “By Universal History, I understand that which is distinct from the combined histories of all countries … and is not a burden on the memory but an illumination of the soul.” If we replace “history” by the more general term “knowledge,” we get the statement of an ideal cherished by the great men of every age—those lonely pioneers to whom book-learning is an intellectual gloom more treacherous than the natural gloom of night, since it fools men into thinking that it is a light by which men can see. The pioneers in thought, or indeed in any field, have made a secret treaty with nature. They smile with her at the robed and tassled scholar who, (Goethe's words) “Bewundrung von Kindern und Affen,” can (DesCartes speaks) “lecture plausibly about anything and get himself admired by the less learned.” Those pioneers, those men who—as someone has said—have thought according to no one and have made the human race think according to them, see by an intuitive insight, an illumination of the soul. Einstein, in his prologue to Planck's book Where is Science Going?, writes: “There is only the way of intuition. … The state of mind which furnishes the driving power here resembles that of the devotee or the lover. The long-sustained effort is not inspired by any set plan or purpose. It arises from a hunger of the soul.” We have not quoted a poet, but the greatest of mathematical physicists.
On the Troublesome “X”
Authors: Tugwell R. G.
Published: November 2002

In unseen and unacknowledged specter, an “X,” attends at every economic feast, and stands at the elbow of every modern wiseacre. It confounds the forecaster with seeming malice showing itself only in the event and even then with impish and uncertain effect. It laughs at pretensions to knowledge; it tantalizes all figurers, haunts all generalizers and keeps itself to itself, a shadow, an unknown. But phantom as it is, it is still a force, a potent, active, generative substance, mysterious in genesis, related to a dream, but able to accomplish miracles of reality. For the purpose here it will be called the creative experience.