hE ELEJiEXT.5 OF COLLOIDAL CIIEJIISTIW. By PROF. โฌ I . FREIJXDLICII. Trnnslntccl by PROF. G. BAIKIEE. Pp. vii3-210. London : Jlctliucn nnd Co., Ltd., 1026. Prico 7s. Gd.
In ortlcr to 111nlic liis " lCapillnrclicniic " nrailnblc for n witlcr audicncc, Prof. Frcmidlicli prepared an nbbrcviatctl version, omitting tlic mntlicmnticnl trcntnicnt nncl iiiorc spccirilisctl dctnil. This ubbrcvintctl rcrsion, priblislicd last ycnr u~iclcr the titlc of " Griinrlziigc tlcr I~olloidlclirc,~J lins now bccli triuis-Iiitcd into English by Prof. Bnrgcr. Thc boo1;s fall rouglily into two pni-ts, tlic first tlcnling witli tlie properties of snrfnccs rind tlic ncco~ltl with colloidtil-dispclsa sys~ems-sols, gcls, Inists, foalus, tlic pl~otolialidcs, nnd so on. Altlioirgli nintlieninticnl tlcductions nrc not givcn, tlic trcntnicnt of basic principlcs is ndniirably clear, point being nddecl hy tlic apt iisc of illustriitions covcring a broad ficltl. 'l'lic book providcs a stiiiiulnting introtliiction to tlic scientific study of colloidril pliciionicnn. and cnn bc coiiiincnrletl to a11 tliosc id10 wish to ~iialic t ~c q ~i h t i i ~i ~~ with this fnscinuting bordcrlnncl of physics nntl clicniistry.
Prof. lhrgcr hiis iiintlc ii translation which is quitc redtiblc, nnd, as far as ciill bc judged, nccuriltc. Tlic publisliclrs hnrc protluccd tlic hook in csccllcwt fashion, a ~i t l thc pricc is reasonnLlc.