Transformations in optics

\cheme as in Part I. the reagents used in indirect titratiolls. with many examples and outstanding documentation. This acction should be \-cry useful. Section .< is an index to functional groups and classes of determinable compounds. Finally, there is an index li>tinr: all of thr compounds mcntioncd in Section 2 of both Parts I and II. Only time will tell how much this hook \vill bc referred to. This reviwvcr believes that it will prove usciul and that most research rrouus should have access to it. 1. I>. I~~I~I~.Kwo~LI,

Transformations in Optics. viii + 116 pp. SX.c).i.

I)r~pnrtmrrst

By I~.~wn~rrx

o,f Chcnri\tr.v,

MI.KT%. IViley,

E‘mory L~nivJpr\it~. .lflarzta, Grnrgk

Sew York,

196.~.

Two of the iour chapters oi this book are dc\wted to the theory and practice oi Fourier transform spectromctr). This is a method in which a spectrum is modulated I)>- the motion of a mirror in a Michelson interferometer. The interference changes irom constructive to destructive for a one-quarter wavelength shift of the mirror. and the observed pattern is related to the spectrum by a Fourier integral. In the author’s \\ords, this is a disagreeable indirect speclral method. but it has the advantnw oi Iwing less wasleiul of the radiant enera?‘ than conventional techniques. The third chapter, entitled “Fresnel Transformations.” is concerned \vith Fresncl zone plates and related topics. The final chapter describes a navefront folding douhlr-tar intcrierometer. a device. based on a moditication of Lloyd’s mirror, which ha< possible utility in measuring the separation of doul~le star>. Thr title oi thi? book is perhaps su,,~~-e~tivc of a treatise on the mathematics of transiormations. The actual mathematical content. however, is cursory. fragmcntar! and nonricorous. The subject matter is limited, accordin :: to the preiacc. Lo topics oi interest to the author, and the hook is intcndcd neither as a textbook nor ax a survey. The writing tends to he conversational. hut it is irequentl>- obscure, and it is libcrall~~ sprinkled with phrases of spccializcd jargon. Probably every Fourier transform spvctroscopist should read this book. and the various experimental techniques prcscsntcrl \vill interest de\otecs of mow conventional optical s!-htemi.

A Laboratory Manual of Analytical Methods of Protein Chemistry. \-01 1. Edited 1~~ I’. -\I.ES.\NIXK .\SD H. P. I,~~vI)(:RI~.N.Pergmon I’rcw. Osforrl, Ilnlrland. xii + 2.l.i p. SS50. The lit-1 three l-olumcs of this series dealt \rith the field of anal?-tical mcthotls oi protein chcmistr) in three more or less coherent subsection>-separation and isolation procedures, analysis and reactivity, and determination oi size and shape. This volume. as the editors indicate in their prefalor~ note. represents a first step in a plan to update th