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CLARKE nncl otlicrs. Pp. -+104. X c w York : John Wilcy and Sons ; London : Chapman and Hall, 1923. Price 'is. Gd. The third volumc of organic preparations, \vliicIi has now bccn issucd by tlic iiidcfntignblc " editorial bonrd." mill, lilrc its prcclcccssors, bc marnily ~vclcoined by organic chemists. The objcct niicl scope of tlicsc volunics is already well linowvn. It is n
📜 SIMILAR VOLUMES
of each chapter, and thc various cspcrinicnts which tltc reader is invitccl to inalrc, tliough sotnc of these are liable to be misleading, 3s wlicii i t is suggestctl that R q m r t c r of a lrriclr shonlcl IN tested for absorption. The Iil~liogmpliy is esccpt;ionally poor, and t h e index, t,l)ougl
sumiiinrised that rcfercncc to tlic origiiial pntcnt would scldoni bc necessary. For the classcs of pntcnt covered, t.lic book is equivnlent to a hnlf-yearly " Friedliinder," and it, will bc found n liiintly book of reference. E. 11. RODD