WDUSTRY 1023
properties, rind ti description of its conipounds. Much of the work incliidcd is rclativcly recent t i i d will not he found iii niiy othcr single work.
l u the four parts of whiclt tioticc is just given, the relevnnt literatitrc hns been consultctl up to tlic cnd of 1937.
1' . L. 11.
ORGANIC CHEMISTRY
Tissmooii OF OI~C;ANIC Crrmirs-rit~. 13y G. 11. llichter. New York : J. I'ilcy cFC Sons, In prcscntiug this I J O O ~
the autlior siiggcsts ttirrt tltr subject uintter is '* perliiips niore tliiin citii bc covercd in nil iivcriigc otic-year coiirsc." Wc liciirtily ngrcc :itid yet, witliout Iiesitntion, rccoiiiiiiiwl tlic work 1)nrticul:irly to stutlcnts of scipncc, for wliom tlic clenicntitry tcxthook is gcncrnlly too liinitctl in scopc while tlic ntl~iiiicctl tcstlmok prcsiipposes sonic preYious kno\vletlge of tbc sul)ject. 'l'lic book is not IL rcfcrcnce book or c~ncyclo~~atdiii, but rather n rciit1iil)lc riccount of tlie syntlicsis niitl cliiirnctcristics of orgiinic coni-I)olids. pliysicril t l i ~t i ~ S U C ~ IIS niclting p i n t s n ~i d boiling points do tiot interrupt tlic t e s t but nrc tiicketl iiw:iy into crircfiilly constructcd tablcs. Tlic subjcct niiittcr is tliorouglily up to tliitc. 'l'lie resiilts of rcccnt rcsciircli iiivcstigritions, IIS, for instance, upon the vitnniins, thc 1iornioncs, i i n t l tlic cnrdinc poisons, Iiiiv1; rccci\vd prop~r rccognition. l'r0bii1)ly tlie iiiost striking omission in thc boo]; is tlic Irick of iiny nccouut of the inctliods of rinnlysis, particuliirly of quontitativc :innlysis, upon \.ltich tlic ~L C C W I L ~C dctcriniiiation of a ~nolcculrir lbriiiiila is Iinsed. Ccrtriin Ininor points in the urriingcnicnt of tlic test will not m e t with gciicriil npprovnl ; i t is cloubtful, for csiiniplc, wlictlicr the stiitleiit could rqq~rccinte thc complcs structiirc of the sterols, wliicli are inclutlcd rintot~g t l ~c uliphtrtic ulcoliols, bcforc full coiisidcriition