Price 9s. This book confortii~ in ordcr of sul$xt-tn:ittcr with the second ctlitioii of I)cniing's G'e)reral Clre))~is~ry, but i t niny bc usctl as n p w t i c n l compiiiiioit to ntiy modcrii text-book. The p r p o s c of the nuthors is to providc n scrics of cxcrcises, both qiinlitntive nnd qu:itititntiw, wliicli shnll lend tlic lieginncr steadily on to tlic ncqiiirctiictit of n sound I~nowlcrlgc of gciiernl priiiciplcs, rntlicr tltnii of n host; of disconnecbcd facts of clicniistry.
'l!hc tnblc of contents shows sintplc cscrcises i n tho follot~ing, nuioitg 0 t h subjects : iiinnipiilation, Inws of gnxs nitd of clicmicnl coiiibiiintion, w t c r and solutions, ncirls, b~scs, mid snlts, hydrolysis, valciicy, ositlntioti and rccluction, tltc ionic tlicory, rcnction velocit,y, colloitls, tnctnls, clcctro-cltctiiistrp, c:it.nlysis. Soim of the coiiiiiioti gases nrc prepnrcd, but thcrc is 110 effort. n t coniplctcncss ; e . ~. , sulpliur dioxide ntitl tltc oxidcs of n i t r o p i , nnd cvcn carbon diosidc arc prcprcd only iticitlentnlly. Tlicrc arc also a fcw prclinrntions of iiiorgntiic salts, niid tltcse are followed by qunlitntivc niinlysis, tlic pitrposc of wltich " is not t o gct through n ccrtniti numbcr of ktio~vn and uiiktiows, but to lcnrn clictiiistry." Conscqucntly, ~niicIi nttciitioii is pnid licre to proccdurc ntiil priticiplcs, iind tltcrc arc omissions wliich iirc. to be mndc good by rcferciicc to inorc ndvnnccd tcxt-books, l'hc pliospliatc scpnrntion, for cxninplc, is dclibcrfitcly omittcil, ntitl tlic trcnttiicnt of ncitlic rntliclcs is w r y brief. At the ctid of cnch scctioii of tlic book t,liere nrc lists of qiicstions wIticIt nrc provocnti~ of tllougllt.
If the pur1iosc of Icnrnittg chetiiistry is to lmomc acqnniintccl with thc priticiplcs of tlic scicncc rather tlinn to rjitnlify for iiii csniiiinntiott, t o gnin n n insight into scientific iiictIiotI rntlicr tlinii n clctmlicrl la~omlcdgc of scictitific fncts, to Icnrti ho\s to tncldc 11 scictitific ~~rolilcm rntlier than to 1)c vcrscd i n ritinlyticnl routinc; tlicii it is cliflicult, to thialr t l t n t ring better mctliotl of proccdurc could bc dcviscd tlinii tltnt, set forth i n this book. Tlicrcfore, nll instructors in clieinistry who nre not slnvcs to nil csnininntion syllnbits sltottlcl get tlic book, nut1 then crirttcstly dctcrniittc how tiiucli of its tcnclting tItL3 ' ' cnn tiinkc their o\w.
- Ar. C,WS S I ~C O S O YEA11 Cor,1,lsa1.: C l I i ~; ~i l s r R Y . 13p 'l'rof. I'. 1-1. C i t m s . Sccotitl cclitiun, rcviectl. Pp. siii + 3M. S c w YorI; : Joltti IVilcy S: Sons, ltic. ; Loiitlori : C1iiipm:tn ntitl I-Tall, I;ttl., 19%. I'ricc 15s. 'l.'liis hook \sris first pul>IisIiciI in 3922, rind for tlic sccoiicl edition tlic clinptcr on iitoiiiic stntcturc lins bccii ciitircly rc-written, wliilst ti ncw clinptcr on colloids Itits hccii. ttcltlctl. 'J'lie siibjcot-niattcr includes tlic following topics : ritotiiic ciiitl iiiolcculnr tlicorics, viileiicy, pcriotlic IIIW, riiclionctivity, ntoitiic stritctitrc, propartics of solutions, ionisntion, intlicntors, homogciieoiis, heterogeneous, niid cotiiplcs cquilibriu~ii, elcctrochemistry, colloids. Exercises follo~v cncli chnptcr.