science deals with human activity and the social process from the standpoint of market choice or market valuation. Moreover, as thus conceived I should not hesitate to affirm that there is no single matter of fact within the whole realm of social activity that does not conceivably lie within the field of political economy; for there is no single social fact, from the esoteric cogitations of the social philosopher down to the mud-sills of human experience, that may not in some way directly or remotely affect human choice in the market. While, then, we may agree with Professor Small that human experience is one organic whole; that no part of it can be abstracted and examined separately with any hope of a complete. or even a partially undistorted, explanation of the whole of experience as such; that therefore social activity cannot give rise to a series of distinct sciences, each dealing with an, abstract portion of human experience; still we may hold that human experience does present several relatively distinct aspects ; that, as a whole, it can be examined separately with respect to each of these; and, as thus examined, it can and does give rise to a series of independent social sciences, each of which has as its material the whole social process -- action and institution -- in short, all social facts ; and each of which is endeavoring to explain ( 747) human experience as such from, the standpoint of some distinct and legitimate human interest.