1242
JOURNAL OF CHEMICAL EDUCATION
not be a suitable text for an advanced course. References t o the original literature are frequent, print and paper are good, and the binding is of excellent quality. NATEANL. DRAKB
The value of the preparations is twofold: not only do they afford approved methods for the synthesis of needed "ausgangsmaterial" but their study gives valuable hints as to the technic of organic readions. F. B. D A ~ N S UNNB-Y
OP KANSAS
IAWBBNCB,
Organic Syntheses. Volume XI. An Annual Publication of Satisfactory Methods for the heparation of Organic Chemicals. CARL S. MARVEL.Editorin-Chief; C. F. H. ALLEN,Secretary to the Board, McGill University, Montreal. John Wiley and Sons, Inc., New York 106 pp. 15 X 23 cm. City. 1931. vii $1.75.
+
Organic chemists always welcome each new volume in this series, which has become one of the valuable contributions of America to this field of chemistry. The present issue contains thirty-one preparations from some twenty laboratories, mainly university-among the foreign ones are found Freiburg, Miinster, and Vienna. The list follows: Acrolein Acetal, a-Aminoisobutvric Acid, 1min no-2-Naphthol ~ydrochloride, 1Amino - 2 - Naphthol - 4 - Sulfonic Acid, Azuxybenacne, a-Bromoisuvaleric Acid, Eromomesitylcnc. 8-Chlurupropionaldchyde ~ c e t a l ,Citraconic Anhydride and Citraconic Acid, Cyanogen Bromide, 2,4Diaminotoluene, Ethyl Ethylenetetracarbornlate, Ethyl Phenylcyanopyruvate, Ethyl Pimelate, Fumaric Acid, dl-Glyceric Aldehyde, dl-Glyceric Aldehyde Acetal. Haptaldoxime, n-Heptyiamine, 9-Iodoaniline, Isodurene, Itaconic Anhydride and Itaconic Add. Mesaconic Acid. 3-Methyl Pentamic Acid, a-Naphthoic Acid, nPentane, Symmetrical and Unsymmetrical o-Phythalyl Chlorides, iro-Propyl Thiocyanate, Thiohenzaphenane,o-ToluicAcid, ~ r i e t h y lCarbinol. It might be noted that the syntheses of ethyl pimelate and fnmaric acid are interesting illustrations of the formation of open chain derivatives from ring compounds.
JUNE,1931
KANSAS
Qualitative Chemical Analysis. HERMAN T. Bmscos, Professor of Chemistry, In diana University. D. Van Nostrand Company, Inc.. New York City. 1931. v 279 pp. 29 Figs. 14 X 22 cm.
+
$2.25. Another book of qualitative analysis. Considering the Limited number of elements whose detection is taken care of by the ordinary qualitative scheme it seems that the possible number of combinations and permutations would soon be reached. But, just as artists in ages past have been painting faces with a limited number of features and have produced no two alike, so analysts have written and are writing their qualitative texts and no two are alike. Each has some features that appeal t o us, and some that do not. Some books like the masterpieces of art appeal favorably t o the majority of us and are acclaimed a new step, a great advance. Now, here is a new book built around the framework of the old familiar hydrogen sulfide separation. I t contains preliminary experiments on each of the ions so that the beginner may learn what a certain precipitate ought to look like and how it ought t o behave. I t contains plenty of theoretical matter (142 pages) so that be may learn why and under what conditions a reaction occurs. As the author states in the preface, the methods and principles which make up the book are those which the author has used in his dasses for many years. Also, the study of the theories and principles of electrolytic solutions serves as an intraduction t o physical chemistry for the chemistry major or as a source of knowledge of many of the most fundamental concepts of theoretical chemistry for the
VOL.8, No. 6
RECENT BOOKS
student who will never take a course in physical chemistry. Altogether the book seems t o be well worthwhile. Some details which p r o s p d v e adopters of the book may like t o know are the following. The order of the analytical groups of cations begins with the alkali proup. The copper and tin groups are separated by ammonium polysudiide. In many instances alternative procedures are given. Amplifying notes and review questions accompany the discussion of each group. Twenty-seven pages are devoted t o the reactions of the anions and their separation and identification. The preliminary examination of the solid is limited t o heating in a closed tube and treatment with concentrated sulfuric acid. Directions are given t o remove organic matters and silicates, if present, before the analysis proper is begun. Phosphates and oxalates are t o be detected and the effect of their presence neutralized by changes in the procedures of Group 111.
1243
recent determinations of the specific rotatory powers of certain sugars are not included in the tabulation on page 262. The factor for the wnversion of degrees Ventzke to angular given on page 268 is strictly valid only for sucrose. I n the discussion of the determination of starch there is no mention of the Rask method. I n the discussion of the Roese-Gottlieb method for the determination of fat in milk, the reviewer feels that a brief description af the widely used Mojonnier apparatus should have been included. The thorough discussions of analytical methods and interpretation of results in Professor Woodman's book are in a large measure responsible for the fact that it is one of the well-thumbed volumes in every food analyst's library. ARTHURW. THOMAS COLUYBI*U N I V B R ~ ~ Y NBW Y O B g
CrrY
Su~ervisedStudent-Teaching. ARTHUR MEAD,Head of bepartment of Education, Ohio Wesleyan University. UNWEFCSITY oa M ~ r l r n Oaoao, Mnrirs and Sometime Visiting Professor of Education, Teachers' College, Columbia University. Johnson Publishing Co., Food Analysis. Typical Methods and InNew Yark. Chicago, etc., 1930. xxii terpretation of Results. A. G. WOODUN, Associate Professor of Chemistry 891 pp. 13.25 X 20.25 cm. 8.00. of Foods, Massachusetts Institute of A comprehensive treatise dealing with Technology. Third edition, McGrawthe problems of the laboratory school and W Book Co.. Inc., New York and Louteacher-preparation in the United States. don, 1931. xii f 557 pp. 110 Figs. In twenty-five chapters the author sum14 X 20 cm. 8.50. marizes the large and varied body of maSince the publication of the hrst edi- terials which he has collected since 1914 tion of professor Woodman's Food Analy- in connection with his service as chairman sis in 1915 the book has established such of the Committee on Practice Teaching of an excellent reputation as t o tender the Society of College Teachers of Educas u p d u o u s any general review of the tion and as chairman of the Research present edition. The author states that Committee of the Supervisors of Studenthe has made practically no change in Teaching. The volume is divided into the plan of the book and has not attempted three parts. Part One deals with introductory data, definitions of problems, and t o include additional topics. Perusal of the book shows that the author has taken the basic theory involved. Pert Two decognizance of improvements in methods scribes the work of the student-teacher; which have a w e d since the earlier edi- and Part Three is devoted t o the larger tion of his hook. The reviewer noticed, problems of an administrative type such however, that the thiocyanogen-iodine as the selection and assignment of studentnumber is not mentioned and that more teachers, the organization of laboratory CARL OTTO
LYMOND
+
