No coin nor oath required. For personal study only.
I-Sincc Prof. Colicn's " I'riwticnl Orgnnic Clieiiiist r y " lins bccn 1)cforc tlic 1)ul)lic for sonic tliirty-sc.cn yciirs, iind is still probiibly thc most popiiliir book of its ltiiitl in t.liis coiuitry, i t clcnrly fulfils the piirposc for wliicli it was wittcn, nnd littlc is ncccssnry in ofTcring n ~vclcomc to thc ~i c w edition bcyontl a niciitioii of tlic fact tlint its scopc lias now bccii somcwliiit ciccntlcd, and t,lint iL nuiiibcr of pre1)iirtitioiis of imyortniicc, iiiore particulnrly in coiiiicsioii with bio-clie~nistry, hnvc bccn ntltlcd. Tlic gcnernl fciiturcs rciiiaiii ns bcforc. 1.t iiiny bc pointctl out, Iio\vcver, bhat tlic prcpiiriition of ~~-I)cnziildosimc, p. 239, rcqiiircs rcvision, siiicc tlic liydrocliloridc is iiot likcly to ~1 ) i i ~i i t c froin ill1 nlltulitic solution ; nccortliiig to I3cclinianii, tlic mlium clcrivativu of tlic osiinc scpnrutcs out. Tlic llcncling of l'rcpiiriition 55, p. 148, ~iiiglit cilsily coiircy tlic iiiiprcssioii tlint citracoilic noitl is Iiictliyl fiimiiric ncicl, ;uid tlint iiicsncoiiic acid is ~iictliyl iiinlcic iicitl. It iiiiglit bc worth whilc in a futurc edition to include \Viiithcr's
π SIMILAR VOLUMES
## 40s CLIE31ISTR.Y AND INDUSTRY Mu)' 6, 1017 slio\vti t l i n t :inti-pinking coiiipomids Iiavc no a p p a ~i i t effect 011 the setting up or 011 the speed of detoliilt,ioli i i i gns mistures. of keeping iii touch witti the prcsciit trend of rcsenrcli on problems of gnseoiis co~~ib~istioii. Th
The whole treatise is essentially a coinpilation of practical methodswhich the authors Iiuve abstracted from original publications without adding any comments on tlicir relative values, these being left to tlic judgment of the reader. Tho book carries a large number of illustrations and tables, adeq
for thc latcnt kcnt of fusion of ice. But wliy linre Blaswcll's " dcnions " beconic " dcrils " ? The book is cxccptionally wcll printed on good p p c r and is of convcnicnt ilimcnsions. It can bc rccommciidcd to all who find the niajority of modern works on physical cheinistry too I' philosophical