JOURNAL O F CHEMICAL EDUCATION
amid:, I-mothjl-1-(1-nsphthyl)-2-thiourea,'&ucobiomiE acid, m-nitiodimethylaniline, 3-penten-2-01, r-n-propylbutyrolsctone and 8-(tetrahydrofury1)-propionic acid, pseudothiohydantoin, rhodanine, stesrolic acid, totraiodophthalic anhydride, m-thiocresol, o-toluic acid, p-toluic acid, o-toluidinesulfonic acid, and 1,3.5-triacetylhenzene. This volume measures up in content, organisation and m e chrtnical features to thehigh standard of the earlier members of this series. The work should move to be an eouallv helnful contribution to various processes calling for simpiified"and kproved methods of organic synthesis.
struct,ure, mass and energy equivalence, and a. few other general topics. While the bulk of the book is entirely descriptive there are 15 pages of appendices which go into some of the qusntihtive aspects of the interprotation of nuclear particle tracks. The ent,ire hook including the plates is only 124 pages in length so that it is not to be expected that the treatment of the subject is exhrtustive. The volume as a whole can be recommended to those who have no background in nuclear soienee while the plates comprise a. collection that should he valuable to anyone working in the field. As a reference book to accompany instruction in nuclear physics and chemistry this little volume should be very valuahle. I. PERLMAN umvznsmr or C*,,r~onar* Beslrerer, C * ~ r r o n r r ~
RALPH E. DUNBAR N o s m DAKOTA AORIODLTORAL COI.LB(IE F ~ n o oN . o ~ m D&HOTA
LABORATORY HANDBOOK FOR GENERAL CHEMISTRY
0
Roland M. Whittaker, Associate Professor of Chemistry, Queens College, and Alexander P. Marion, Assistant Professor of Division,+Chemical Chemistry, Co., Queens College. Brooklyn, New Press1941, 363 pp, 23 figs. 20 X 28 em.
SEMIhfICRO EXPERIMENTS IN GENEAAL CHEMISTRY
0
$3.50.
THISis a thick (2.Scm.), paper-covered m m u d spirally bound in two sections with 32 units each followed by perforated sheets on which the student reports answers and data. There me slso six elementary discussions on (a) radioactivity, atomic structure, valence, and periadicit,~(12 pages); (b) solutions and their properties (10 pages); (c) theory of ionization and its applications (9 pages); (d) oxidation-reduction (8 pages); (e) foods (5pages); and (f) consideration of ionic equilibrium (11 pages). The manual presupposes an early knowledgo of chemical arithmetic; for example, in the second unit students m e asked to derive the simplest formulas from percentage-composition data.
Jacob Cornog, Assistant Professor of Chemistry, University of 217 pp. 40 Iowa. Ginn and Company, Boston. 1947. v i figs. 20 X 28 em. $2.20. ,
+
THISloose leaf book provides 41 short experiments and their report sheets, sufficient for one term of two laboratory periods per week. The apparatus is semimicro in size (and cost) and can he used in the second semester far semimicro qualitative analysis. The experiments in the main m e quite simple and many of them give too many hints or even answers. There are more experiments involving numerical answers than one finds normally in a book of this kind; no doubt the use of semimicro equipment permits these experiments to be made quickly and with a fair degree of accuracy. However, themany experiments involving titrations are performed by use of a medicine dropper and a 10-ml. graduated cylinder, while several other experiments neglect vapor pressure data. S. B. ARENSON 1884 Lnnser.
H o ~ n ~ w o o C*,.~FI)RNI* n.
8. B. ARENSON 1884 L~onet.C A ~ OBODLEVARD N
Hamrwaoo. Cu.r.lroar*r*
NUCLEAR PHYSICS C. F. Powell a n d G. P. S.Occhialini, The H. H. Wills Physical
0
Laboratory, University of Bristol. O d d University Press. 1947. viii 124 pp. 16 X 24.5 Em. $6.
+
EVERSINCE Becquerel discovered radioactivity by observing the fogging action on photographic plates this method has heen ~ , i k the ~ aloud used in studying nuclear techniques, photographic emulsions give a graphic-record of the events that hefall a high energy particle provided the density of its trajectory is sufficient to produce ionization produced a track. ~ bbook i on ~ yquclear physics in photographs" is built around a collection of photomicrogrs;phs the tracks of charged particles in specid photographic emulsions developed for the purpose. The plates aredisplayed in groups, each of which illustrates a type of observstian that can be made by this method. These include the study of natural alpha-emitters, the scattering of the measurement of neutron energy by proton induced of mesotrons, and others. nuclear reactions, the developments subjects covered by the plates include such as the work with the Berkeley 184-inch synehrocyclotron. are of full 50 plates almost all of ~h~ book page size. The selection and reproduction are exeellent and the ease of study is enhanced by the presence of the interpretation of plate on the same ~h~ text mch group ,f the of plates consists of a brief and simple processes which are to be illustreted. In a similar vein is a group of short sections st the start of the volume giving some background information on the nature of radiation, nuclear
CANYON Boomv~no
TIME AND THERMODYNAMICS
0
A. R. Ubbelohde. Odord .University Press, New York, 1947. vi 110 pp. 14 X 19.5 cm. $2.25.
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B~~~~~~ it is hard to determine the purpose of this book to whom it is addressed, its evaluation is difficult, ~f the book is intended for the reader who has no specialized background, its te'minolog~ is not treated adequately. Knowing the difficulty students who are prepared have ~ 6 t hthermodynamics, one might say that the task of explaining the subject to the general reader is an almost impossible one. Probably the author does it as anyone For the student and teacher, there are well-presented analogies which may prove of value; for examplo, the discussion of entropy and probability in terms of the number of occupied seats in a theater. On the other hand, the same confusion still to be found in a number of textbooks between internal energy and heat, a n d between a s~ontaneouschange and the process by which it is Out, is encountered in this Perhaps more serious is the omission of any discussion of the work of E. A. Milne. In a book that stresses the connection hetween time and the Second Law of Thermodynamics, such an overnight seems inexcusable, fimt, because Mihe has shown that the Second Law as stated in terms of entropy cannot he valid for the whole universe, second, because of Milne's demoustrrttion that our picture of the cosmos depends upon a choice between two time-kee~ing However, the hook is well written, and it is sufficiently novel SO that most students of thermodynamics can read it with interest. W. F. LUDER NO,,.,.,.,
UNIVE~~TY
BDSTON.MIBBACWBETTB
