This Trat.isc of Inorganic Cheiiiist,ry is to lie cornpleted in tn-clve voliiincs, of wliich tlie first hiis jnst bbcn published, dealing with iiir, wnter, liydrogcn, osygc~i, fluorine, chlorine, bromine, ant1 iodinc. It inclut1c.s chapters on liquid uir, t,hc liytlrogcn ititlustfry, conihiistion, ozoiic, hydrogen pcroxide, and tlic linlogc~i and bleaching powler industries. I t is sonie\vlint similar in plnn to JIcllor's Treatise, iind like t,liitt \veilknown book it has i i t the end of cncli chapter n copious hibliogrnphy ; t,lius t,hc cliiiptcr on iviiter hns ii list of 715 rcfercnccs, and tlicit on oxygcn lins I 5 5 references. Each chnptcr is clcarly written, and tlic \rliole volunic is rcmnrknhly good. rl'hrrc itre nbuni1:int physical dnta and constants ns \wll ns descriptions of the chcmivnl propertics of the viirious clcincnts and coinpoimls. The book is very well printed, : i d \veil got pp, iind thc price-150 frnncs-is cxtrcinely low consitlwing t htr excellence of tho niiittcr iind thc size of t,hc voliimc1. I t is quite up to dnte, and Sh(Jllld he found to hc w r y iisefnl. We look fonviird to seeing l'oluine 11, which rill den1 with snlphur, scleniuin, and telliirium.