VOL.4. NO. 2
RECENT BOOKS
of the average student. This very important fact has been verified in regard to some of the work by one of the reviewers. The book should prove a valuable help to dairy departments, municipal milk inspectors, nutrition departments and all others interested in milk and milk products. It fills a lang-felt need for a manual that gives emphasis to the colloidal and biochemical principles underlying the average routine dairy tests.
269
couraged. Teachers of organic chemistry
are somewhat inclined to d a c e too much
emphasis on the question of laboratory preparation in introductory courses and to give too little attention to system and organized technic. Just as important for success, as skill in manipulation or technic and familiarity with laboratory methods of synthesis, is the ability t o analyze accurately mixtures of organic substances and establish the presence of character. istic groupings and to be able t o work with STATIEERIKSON small quantities of material. The importance of this is illustrated in the newer R. N. MAXSON fields of biochemistry where we are called upon to carry out very careful chemical The Preparation and Analysis of Organic diagnosis in order to make progress. The Compounds. J. BERNARDCOLEMAA-synthesis is the final c h e m i d achieveAND FRANCIS ARNALI. P. Blakiston's ment. The hook serves a good purpose Son & Co., Philadelphia, 1926. xvi in emphasizing this particular phase of 352 pp. 13.5 X 21.5 cm. $4.03. elementary instruction in organic chemistry. A book designed to place before the TRSATB. JOHNSON student a course of practical organic
+
chemistry. It differs little in its scope from the usual conventional text-books Physical Chemistry for Colleges. E. B. MILLARD, A s ~ c i s t eProfessor of Physiwritten for presenting this subject to becal Chemistry, Massachusetts Institute ginners and includes typical processes of of Technology. McGraw-Hill Book laboratory synthesis with general methods Co., Inc., New Yark. Second Edition. of analysis both qualitative and quantita468 pp. 81 figures and 128 ix tive. The series of preparations are quite tables. 13.5 X 20 cm. $3.50. comprehensive, and described in detail t o aid the student. and prefaced with explaThe author's purpose, as stated in the nations regarding the theoretical processes involved. The authors have amanged preface of the original edition, has been "to bring before college students certain their preparations in groups of related organic compounds, in this manner avoid- of the more important aspects of physical ing the method generally adopted of tak- chemistry, together with accurate modem data which illustrate the applicability of ing up the preparations in the order of increasing difficulty of application in the its laws to the phenomena observed in the laboratory. The authors have intro- laboratory." duced a scheme of organic analysis, someThe second edition involves no fundawhat original in conception in an ele- mental changes and such changes as have mentary book of this character in which been made are intended to bring certain an endeavor has been made to systematize topics up-to-date and to give a fuller preand organize an orderly arrangement of sentation t o keep pace with the relative analytical procedure. This is an excellent increase in importance of such portions. feature and the method of treatment To give an idea as to what changes this should be of assistance in stimulating.a plan of the author has involved there is greater interest in the subject. Anything given below a list of chapter headings tothat can he done to systematize the sub- gether with the increase which the second ject of organic chemistry should be en- edition has added to each.
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NO. pages
added by
Chap. No.
I I1 111 IV V VI
VII VIII IX X XI XI1 XI11 XIV XV XVI
2nd ediL
Chap. heading
Introduction, Determination of Atomic Weights Laws of Gases Liquid Substances Solids SolutionsIdeal Solutions Ionized Solutes. Electrical Conductance Thermochemistry Homogeneous Chemical Equilibria Heterogeneous Chemical Equilibria Velocity of Chemical Reactions Physical Properties and Chemical Structure The Periodic Law Radiochemistry and Radio-, adivity Atomic Structure Surface Chemistry--Colloids Electrochemistry-Electromotive Force
tion
0 I
a
13
4 6 1 1
3 3 0 0
1 2
7 2
This will serve to give t o any one familiar with the first edition an idea of the changes introduced by the semnd edition. The book is well mitten and its value much increased by the problems added a t the end of nearly every chapter and also by the large amount of well-chosen experimental data taken from the literature. The reviewer does not see the desirability of making such little use in a book
of this kind of such fundamental interpretations of chemical reactions as given by the laws of thermodynamics. Because an excellent text-hook an this suhject has appeared does not seem to justify relegating this important subject mostly to footnotes. The author has assumed that students using this book will have had adequate courses in physics and calculus. I t appears to the reviewer that this subject should have been given more emphasis even a t the expense, if necessary, of reducing the attention given to exploiting the more naive conceptions which the experimental data quoted by the author show t o be only approximations. J. C. W. FRAZ~BR
