BOOK REVIEWS el al., Jones, and Kemula; Polarograph.~, Semersno, I k m u l s , Kaloods, and Zuman; Radioehemistry, Winteringhom, James, Bryant, el ol., and Gilrhons; Spoct,rrrchemical Methods, Marti, Oarton, Morton, l3ellamy and Williams, PhilpotLs aod Maddams, and Miller and Willis; Titrimetry, Bobtelsky, Stock, Reilley, Mst,toek, Williams and Brooks, and Lncourt; Complexomet~ry, I'ribil, West, Cheng, Kiires, nnd Reilley; Industrial Appliratians, Haslam, Chirnaide, and IVhnllry; Teaching, Benedctti-Pichler, %nrhr.rl and van Nieuwenhurg; A p pnwtus, Steyermark. The Symposrum r o d o d e d with Rrlehcr's Plenary Lecture on British Contril,utions. It is difficult t o single out individrd pnprrs for comment in the Rpacr availahle. ,1 hr papers on mothods and techniques will lw vah~at,leto d l analytical chemists as coneisc summarirs of current practise. 13rir-f reviews ol thforeticnl principles and key ~eferencesm e given. This summary of the work and reflertions of a distingllished group of chcmists is rrcommonded to all analytiral ehemists. The only regret is t,hat i t takes t,wo years to make the mat,~rialavailable t o those who wpre not fortunate enough t,o x t t m d this stimulating Symposium.
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of cr,ystnls, bhcir c i e s ~ r i p t i ~8n11,d rnctfmls of study. The chapter concerning hot and rold stages h a been madcrnisal. The methods of stndy of t,he e l k r t of temperat~rre change8 on mounting medin (liquids) nnd the specimen variation are shown to yield much useful information which cannot be obtained by use of only one tcmprrature. Not only are differcnees in refractive indices obtainable but also phase changes, identifirstian hy mined melting points, &c. I n general t,he real vnhw of this edition as well as the second edition is in the clarity and directness of presentation. The inforn~ationon the difficult srienw of examination of cn.st:tls and bextile fihrrs by the polarizing microscope is so well given so as t o Ire a microsropiat's hm& book for reference purposes. The uniwrsal stage and its use, ior instsnce, are deserihcd so xs t o make its use relatively P B . P ~ . Any college raurse in microscopy or chemical mirrm,sco~~,y will he enrichml hy the frequent use of t,his book. I n mmmation i t may he mid that this third udibion eonbains a few items more than the second edition. For those ehnnists whodo not now own theearlieredition, it will be a good stlrlition to your personal library. RAYR. KRAMMES iltne~iconCjyanamid (!omp(mv Bmmd Brook, New JCTFW/ Physical Pharmacy
Crystals and the Polarizing Microscope
N. H. Hnrlshorne, University of Leeds, Ikglsnd, and A. S l m r t , Univrrsity of lkietcr, Englnod. 3rd erl. St. ll;trt,iu's I'ress, Ine., New York, I!lliO. rv 5 5 i pp. Fim. anrl tshles. 14.5 X 2'2 em. $17.50.
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This rdit,ion ss mcll as the previous pul,liention is primarily aimed a t those persons drriruns of knowledge of crystals, their growt,h, and st,udy. I t must heeome apparmt t o thc st-rious chemist t h a t much useful iniormnt,ian mn be gained ahout compounds bv u s r of tho polarizing microscr,p~. I n vipw of thc diminishing numhcr of t,rained and qualified optical microsropifits this book mnkes n good attempt to explnirl to the readcr the vslushlc but, also rather diffirult science of crystals, their t,r;tnsforrnntion, am1 methods of study by thc use of rather little known ( t o thc non-microscopist) equipment. Tho 13 chapters m ~ d544 pages of this pulhv,tion (12 chapters and ?(i2 pages in thr 2nd exlition) contain in general most of the information present in the previous edition. There has been some rearrangetnent of topics to e r ~ a t eanother chapter nnd to p r w ~ n xt mom logical arrangement of infomation. Most of the contents of whole rhapters rcmains essentially Ilnchnnqed, h ~ there t have b c m worthwhile t,opirs stlded ~ u c has the discussion on crystal growth mechanism. While this information has been known nnrl spoken of far many yews by a few persons in microscopy, f;~rtoo few s c i e n t i ~ reoogniae t~ its import:~ner. The authors prcsent this subjwt in s concise and clexr manner. Its :ddition hrlps t,o make a more r o i n ~ ~ l ? t e ,,resmtotion of rryrtals, dilTwrut types
Alfred N. Martin, Purdnr Cnivcrsity School of Pharmacy, Lafayette, Indiana. Lea Q Febiger, Philadelphia, I!)liO. 692 pp. Figs. and tables. Ili X 24 cm. $15.
This book combines tho basic conropts of classienl physical ehrrnistry with . z p plicat,ions t o pharmacy and medicine. Methods used in measuring the ghysiralchemical constants of medicinal chemicals mnkes the tpxt i n v d ~ ~ n hto l e thp st,udy of pharmacy. The basic physical chemistry concepts are presented in such n way t h a t the student is able t,o apply them t o problems involving standardization, stnbility and ahmrption of r h g ~ and rlnlp products. Numerous examples of w r h applications are t,o he found in the text. Although the calculus is u ~ e din the derivation of several of the fundamental equstians, i t is not a prerequisite to oeing the hook. The explanations given anrl the problems included require only freshman mathematics for their understanding and solution. The text is wII written on g w d p n r w and is well ilhlstmted. Wide use of tables and line drawings lend t o the easc of nnderstanding. I t is upto-date in all resperts. Despite thc fact that the text is written primarily for pharmacy sttrdents and manufneturing pharmacists. i t rervcs alzn as a n ideal text for use in t,he premerlienl program as well as in any lxginning ronrse in phynieal chemistry. The cmphilsis on drugs and problems involving dwgs makes the text roadable and interesting to most students of physical chemi~try.
Volume 38, Number 2, February 1961
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