descriptive chapters conclude with a section on qualitative analysis. A commendable effort has been made throughout the book t o cite the origins of names and terms. T h e inclusion of minerslolopcal references t o the compounds under discussion, as a part of the discussion, rather than its obviously "added-as-an-afterthought" inserts is refreshing. Two points seem worthy of some discussion. The first of these is the old question of whethw gallium, indium, and thallium are in group IIIA or IIIB. The authors chose t o put them in I I l B hased on elcetronegntivity trends and the types of ions formed. The reviewer thought t h a t tho decision had been reached long ago on the basis of the location of the last electron added. The second qucstion involves electmehemieel conventions. The authors have written all half-reactions as oxidations, i.e., electrons on right-hand side of the equation, and all potentials have been given a positive sign (see p. 609). This is x ~ c o m ~ l i s h eby d osinp a single arrow (-) for the half-reactions abovc hydrogen in and a single arrow (-) for thuse below Irydrogen. I t seems t o the reviewer that this is no significant help t o t,he student who continues in rhemistrv and who will have t o readjust later t o the California convention. The hook is marred by few errors. The two moat critical are in that section of ionic equilibrium which causes enough trouble even when error free. The reviewer would place "The Nature of Atoms and Molecules" on the traditional side (using Sienko and Plane as a reference point) since the authors have included more exhaustive sections of descriptive material, hut i t has about equivalent treatments of theoretical matrrinl except for kinetics. HARRYH. BATEY,JR. Washington Stole Uniwmsity Pullman
Gmelinr Hondbuch dar Anorganischen Chemie, 8. Aufloga, System-Nummer 60. Kupfer. Part 8, Section 2 Edit,ed by the Gnrclin In~tifuteunder the direction of E. H . E. Phtseh. Verlng Chemie, GMBH, Weinheim, Berg352 pp. Figs. and strasse, 1961. sli tables. 18 X 25.5 cm. Cloth hound,
cates, phosphatetes, and nrsenites-arsenates. A few pages only are needed to cover copper compounds with antimony and bismuth. W. F. I
