, 1906-02-09
PROFESSORS
AS AUTHORS
OF WASHINGTON AND
WYOMING UNIVERSITIES ON
CHEMISTRY.
Notes or Qualitative Analysis" Com
posed, Printed and Bound by The
Republican for the Students In
Chemistry Of Two State Institu-
ticns-Comp!ete in Detail.

There has just been published by
the authors and composed, printed and
bound by The Republican, IN interest
ing book of Sc pages, Notes on Quail
tative Analysis" written expressly for
the students in chemistry at the Uni
yersity of washington and the Univer-
sity of Wyoming by Horace G. Byers,
professor OF chemistry, University of
Washington, and Henry G. Knight, pro-
.%fessor of chemistry, University of Wy
oming. In their Introduction to the
volume, which is bound in boards and
cloth, with black title, and printed on
heavy book paper, the authors say:
THE problem which confronts the
analytical chemist is N of Identified
ton. What elements or compounds are
present in a given substance? The an
swer to this question may be either
qualitative of cumulative. In the
first instance he is concerned only with
what substances; in the second with
~ "NS VI NeNA- 1utoG NNO lllCo
Of inquiry are usually considered I'M
der two separate heads, qualitative an
alysis and cumulative ANALYSIS, yet
neither is Independent of the other.
Even when we wish to know only what
substances are present, it is impossible
to ignore the relative amounts. When
We wish to determine quantities exact
ly, it is imperative to know the con-
stiuents in order to properly select
methods of separation. 1t follows that
qualitative must precede quantitative
identification.
The complex substances with which
the analyst deals may consist of mix
lures Or of compounds, in other words,
of substances formed by the interposi-
ton of molecules of n kind among
those of another or of substances form
ed by the chemical union of their con-
s%tituents."
Under the heading, General Direc-
tions,' the writer's treat of equations,
precipitation and filtration of tests,
amount of samples, tests of reagents
and note books.
The text of the volume is divided in
to four parts, with an appendix. Part
l relates to metal examination, the
metals and experiments being divided
into groups, each group being treated
separately. The matter is largely tech
nical, but must be a great aid to the
young chemist, as showing the manner
of determining the metals by their com
ponent parts, separating the parts and
determining the value of each as form
ing the whole.
Part II is given to acid analysis,
Part III to systematic analysis, Part
" to rare metals and the appendix to a
list of apparatus needed by the stu
dent, the reagents in solution, other
solutions used in preliminary expert
ments, reagents in solid form, a table
of atomic weights, the periodic system,
table of solubilities, table of the metric
system, metric measures with English
equivalents, English measures with
metric equivalents, how to convert one
form into the other, n table of the
degrees of i%onization of acids, bases
and salts.
The gentlemen have pretty thorough
ly covered the ground, from the stand
point of the student and the point of
view of the layman, and the neat lit
tie volume should find its way into the
library of every student of chemistry
in the two universities