VOL.8. NO. 1
RECE1NT BOOKS
To reach these objectives 74 exercises covering 211 pages are given. This is followed by 77 pages on qualitative analysis. Exercises are adapted for a two-hour laboratory period with additional paragraphs for use if a longer time is available. Space is reserved in the text for the student's record of his work. In each exercise references to t h e "Genrral Chemistry," a general statement of the purpose of the experiment, list of materials and of apparatus, and directions given. Then a series of questions with space for answers or a blank table for results follows. These questions are well chosen and cannot be satisfactorily answered unless the student really has done the work. More special apparatus is required than is ordinarily used in a course in general chemistry, such as gas burets, apparatus for filtering hot Liquids, and for filtering under diminished pressure. The hope is expressed "that the choice of exercises may not too often be determined b y limitations in equipment" (page ix). There will be considerable opportunity for choice as all the work in the manual cannot be given in the time usually available. The authors have achieved the aims set for themselves. The reviewer would question the advisability of giving twentyone physical and chemical . pro~erties in the . &laboratory exercise. Twenty of these are defined while after "transparency" the only statement is "glass and celluloid" (page 4). The cut of the pipet on Figure 5. page 21, is omitted. On page 40 it is stated "1 I. of oxygen, under the given conditions, weighs 1.42 deg." But such mistakes are exceedingly rare and evidently the printer's. The authors have done their work with care. The physical make-up of the hook is attractive and well done. Information of value concerning buffered solutions, indicators, solubility, vapor ~.pressure, and density are given in the appendix. Even the inside of the covers is filled with helpful information.
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Undoubtedly this third edition will prove useful and valuable as have the two earlier editions.
HALE HARXISON U m n s n
OF
ARXANSAS,
F A F E T ~ B V Z L LAXXANJAS E,
College Chemistry Quiz Book f o r Kendall's Smith's College Chemistry. CECILV. KING, PH.D.. Assistant Professor, and WORTH WADE, PH.D., formerly Instructor, both of Washington Square College, New York University. The Century Co.. New York City, 1980. viii 209 pp. 13 X 20 cm. $1.50.
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This book, one of the Century Chemistry Series, edited by Dr. James Kendall, was prepared for use with Kendall's revised edition (1829) of "Smith's College Chemistry." The questions and exercises follow the text which, as is well known. follows the established historico-systematic procedure. It begins with a few general topics. These are followed by oxygen, hydrogen, and other non-metallic elements, then bv the metal. Thc usual chapters on hydrocarbons, etc., are also included in appropriate places. Appendix .~ B is devoted to oxidation-reduction equations and Appendix C to a four-place logarithm table on pages which face each other. This last feature is a very desirable one as the student has t o do with many problems. The quality of paper, printing, and binding are excellent and the size is a convcnient one. Procedure employed for each chapter consists of one or mare general statements, examples of problems, exercises, review questions, true and false statements, and statements t o be completed by the students. For the last two items, space is provided with dotted lines. I n addition, for t h e last item, the student is directed t o rewrite the false statements making them true without changing the content. The material is well selected and will be of much service t o chemistry students of ~
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JOURNAL OF CHE:MICAL EDUCATION
college grade and t o teachers, especially t o the younger teachers of chemistry. C. A. BRAu~ecnr
JANUARY,
1931
weights of atoms and molecules as mentioned in Chapters I1 and 111. By means of a few such determinations, i t is possible t o obtain a knowledge of the exactness of chemical changes and t o lead students t o think in terms of units of weight Chemistry and Cookerg. ANNIELOUISE of the size of the hydrogen atom or of aneMACLEOD,Ph.D., Dean of the College sixteenth the oxygen atom, which conof Home Economics, Syracuse Uni- ceptian-could nicely lead on to a discusversity, and E n r m H. NASON,Ph.D., sion of the proton as a positive unit of Professor of Foods, Syracuse University. matter. First edition, McGraw-Hill Book Co., As another example of the inclusion of 545 mare laboratory experiments, it seems Inc., New York City, 1930. xii pp., 25 figs. 14 X 20.5 cm. $3.50. probable that the study of a few more eleThe attempt t o choose from the vast ments and compounds would make the fund of chemical knowledge the principles student more familiar with the composimost useful to the student of home eco- tion of matter and the simple changes in nomics is a problem of greatinterest as well matter which go on around us. It would as one which is attended with most serious also give her a more satisfactory technic difficulties. The authors of this text in handling di5cult apparatus. It could acknowledge the difficulties and forge be recommended that the preparation of two or more colloids of a chemical nature ahead using a method of presentation based on the application of the theory of would nicely amplify the study of the general principles for making colloids menchemistry t o home economics problems. From the standpoint of the foundation tioned on page 189. After such a study principles of education, the arrangement the application of these same methods t o is sound. Though not mentioned as such, the preparation of certain foods, as menthe principles of the "unit method" are tioned on page 498, would be especially carried out especially in certain sections of valuable. the book, a few of which are mentioned as Having in mind the aim of obtainmg a fallows: the study of carbon dioxide, foundation of chemistry which will be of carbonates, and baking powder in succeed- value in later courses in home economics, ing chapters; the development of organic i t would seem that the book rather overchemistry with the following consecutive emphasizes the application of chemistry in groups: esters, oils, fats, soaps; carbo- cookery processes a t the expense of other hydrates and flour; proteins and the phases of home economics work. It is cookery of eggs and meats. I n these and most important that students who conother unit sections of the hook, the inter- tinue in many of the major lines of home est of the pupil is kept on the purpose for economics have a course in elementary which she learns the principles of chem- chemistry and in organic chemistry which istry and there is no better way t o aid will he a foundation for further chemistry the memory than by using, in various courses to meet their advanced needs. ways, the principles learned. The material of this text is uniquely The reviewer believes that certain parts planned for a very excellent course in of the first chapters could be extended t o chemistry and rookery. There is some include more chemical applications, es- question as t o whether or not i t would pecially in the laboratory work. For ex- adequately meet the requirements of the ample, a few quantitative experiments to general home economics student. show the combining relationships between NELLIEM. NAYLOR elements and t o show valence would seem IOWA STAT=C O L ~ D B AXES. IOWA to make more vivid the calculation of the
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