Science Citation Index. Institute fo r Scientific Inforiii:itiiin, Philadelphia, Pa. 19106. 1961. $700. 1964. 5 Vd. 2600 1111. 24.5 X 30 cin. $1250 for some 1ihr:wies ai111 iiiclividiids. 61950 for others.

This is i i iiiassive undertaliing, :it :I p r i w IIIIIJ- felv indivitlu:ils : int i large libraries \vi11 he iihle to :tflortl, to t:tlie iridivitlu:d i i i -

trrprrt:ition out of the indesing i i r t t l t'ie reading o f 1iter:iturr. a1istr:icts. Hg comparing referencm to ii giveii p i p e r i i i virtii:illl. :dl nutjor srientifir journitls of ever\- hue, :i systeni h : ~ s iieeit d(,- vcloped by 1vhic.h all tiortiers hetucwi dortriiirxs ai-(> tieing criissetl, :tnd the reader is given a quickg1anc.e :tt t h e i i i i l inct of rrrie :iiit,lii!r'F

ivork on tlie thoughts of other scient,ists. T,cioliirig up, for e\-:tmple, the n:inie :md journal reference t o a given piipt'r. t hc' sr:tri~hcr will find in the same eritry preceding :irticles ti:. the, sirme :tutlior quoted :is previous a r t , as \v r~ l l iis tiir p:ipprs h>- :dl other :iuthors wliii h:tve quoted thc: first investig:itrir's \viirl< iii t hc i r I I W I researc,h publicatiiins. :itid the, origin:tl reference to he lorjked up Ijec.ciiiic~ iricire wiit :is reflec>ted by t h e ideas it has stiniul:itetl i n others. Hiin

\vould you like to look up a paper in :I jiiiirnal o f dairy s('ienoe : i l l t i

tliscwver t h t some physical propert ie o n :I viscosity equatiori developed 53 ;iiidJ furthermorc~. t ha t thr. idea i i f I I

:idv:iiii~xl \iy the :ipplic:ition of tlicl v:lrietl t vp i cs :is iiitrinsic: veliwity, t h t size :ind sh:ip(~ o f ntii~ellc~s, t i l e properties of the protoplitsni of : i t i i i i t ~ h i ~ , : t i i d t i i t , v : i I i u l : i t i o t i of rrtornic dimensions?

No other indexing systeni niakes p:issiIik t h e cri)ss-frrtiliz:ltii~~i of the scierices as does the present series. In rnedicin:il rheriiistry. where progress c:tn tie acahieved only by :I c~ofluence of many tlric,- trines, this citation index !vi11 he esperially wel(~onie. -4ud fidlj., p:ttmt srarcalies will be facilitated considerably Liy nnc.overiii$ (::tses in iirirelat,ed arras which mag h:ivo :I iiearing oil t h e (~iise i r i qiiestiun.

T h r a i i i : i i ir disadvantage (if' this irides \vork--iipiirt friiin its for - iiitldirig i-(1st-is the very fine print which, i r i :I prolorigetl seurc,Ii, \Till make the use of a inngnifging glnss imper:itivt~.

Thus. perspec,tive is

Progress in Drug Research. Volunir ii. I.;tlited 1,y F;. J L - C I i E I t . I3irkhiiuser Verlag, Basel, S\\-itzrrl:ind 1963. 17 X 21.6 c n i . 423 pp. Swiss Fr. 10s

It is :L pleasurtl to see the svieritific standards of this iiiiport:int series rise from volume to volunie. T h t present book prtserits four riiono,yraph-type reviews, e:ii.li c~iirnplete, witical, i i i i t l I * : L ~ P -

fully prqiared. Only the fifth cahapter, S e \ v Drugs, kiy \\ . B u n a ret:tins the noncritical attitude ( i f siniiltir previoilj rev iew O I I rcxrent drugs. I t is :t i~onlpihtion of nm\- c.linic.:il and eslleri- riicnt:rl drugs, niaiiy of rr-hicah h : r w i i i i t 11eeri iipproveti for gerieriil p r : i c i ire. the ~ipiriions of soi i ie ~ ~ ~ ~ n i ~ ~ : i ~ i i e s riiitn.ithst:iriding.

Tiicl four i~i~tstandirigly g i i ~ ~ t l chapters :iw l h i g 3Ietiihcilisiii I. R. Gillette), Iutliile Ci in~~i i iu~ ids ( R . V. Heirizelniiiri i i t i t l , J . zniuszkovicz). Siiec~triifluirro~netr~~ iii Pharni:it~c~utic:ll Chernistr!,

( H . 0. I,eeniaiiii, K. Stich, and 11. T111~tii:t~). :ind 13iologicallv