418 



THE POPULAR SCIENCE MONTHLY. 



"in elevating the Indian race." Many re- 

 spects in which the Indians are commonly 

 misjudged are pointed out in this volume, 

 and a large store of material is furnished 

 from which an intelligent opinion of these 

 people may be formed. 



The Story of FlAr-PiNOLANDE and other Le- 

 gends, By Oliver Bell Bcnce. New 

 York : D. Appleton & Co. Pp. 188. 

 Price, 25 cents. 



These are nineteenth - century legends, 

 or essays they might be called, for the em- 

 bodiment of story in each case is subordinate 

 to the thought which it contains. They are 

 ■of a critical -character, but far from being ill- 

 natured or pessimistic, and are attractive in 

 style. *' The Story of Happinolande " calls 

 attention very forcibly to the fact that the 

 necessity of providing for our own wants is 

 the only thing that makes us consent to 

 supply the wants of others, and that without 

 this necessity the industrial system of the 

 world could not exist. In " A Millionaire's 

 Millions" a would-be public benefactor is 

 gradually forced to the conviction that, for 

 improving the condition of the poor, ideas 

 are more powerful than money, and that a 

 stimulus to industry and economy accom- 

 plishes the beneficent purpose which alms- 

 giving only defeats. Certain schemes and 

 tendencies which have recently attracted pub- 

 lic attention, especially in New York city, are 

 also critically examined. " The City Beau- 

 tiful" is an ideal, which will stimulate the 

 reader to do his share toward realizing it ; 

 while the closing story, "John's Attic," is 

 an ideal of a " home beautiful"" adapted to 

 moderate circumstances. 



Prof. David (T Brine has published a 

 second edition, rewritten, of A Laboratory 

 Guide in Chemical Analysis (Wiley, $2). In 

 its present form the book comprises, first, 

 a chapter giving the preparation, tests, and 

 uses of each of the reagents employed ; 

 next, a description of tests in the dry way, 

 including those specially applicable to miner- 

 als. The tests in the wet way for the bases 

 are then described, and there is a page on 

 separation by electrolysis, whieh is followed 

 by the methods for separating the acids. 

 The next chapter comprises tables showing, 

 first, the reactions of the bases, then these 

 of the acids, with the usual reagents, which 



are followed by a brief summary of the 

 leading laws and principles of chemistry. 

 Methods for the examination of water and 

 the detection of various poisons are given, 

 and the closing chapter deals with general 

 stochiometry. 



The treatise on The Lixiviation of Silver- 

 Ores with Hyposulphite Solutions, by Carl A. 

 Stetefeldt (The Scientific Publishing Compa- 

 ny), is offered to metallurgists as a clear, com- 

 plete description of the lixiviation process 

 in its most improved modern form. Special 

 prominence has been accorded to the Russell 

 process as practically standing for the lix- 

 iviation of to-day. The author deals first 

 with the chemistry of the process, describ- 

 ing the chemicals used, giving the reactions 

 of thn sodium hyposulphite and the extra 

 solutions, and telling in some detail the 

 solubilities of metals and various compounds 

 in sodium hyposulphite solutions. This part 

 includes also the chemistry of the wash- 

 water, and of sodium and calcium sulphide, 

 and a chapter on laboratory work. In the 

 part of the volume devoted to the practical 

 carrying out of the process, a minute de- 

 scription of the arrangement of the plant is 

 given, with detailed drawings, dimensions, 

 and estimates of the cost of erecting and 

 running the mill. The making of the solu- 

 tions, the charging and discharging of the 

 vats, the treatment of roasted and raw ores, 

 and the precipitation of the metals from a 

 lixiviation solution receive attention in turn. 

 The closing chapter is a comparison of re- 

 sults of the Russell process with those of 

 ordinary lixiviation and of amalgamation. 

 The author reports that he has found it dif- 

 ficult to obtain correct statistics of the lix- 

 iviation process, but he expects to issue 

 supplements that will place the statistics 

 upon as sound a basis as the chemistry of 

 the subject rests upon. The first of these 

 supplements accompanies our copy of the 

 work ; it contains some corrections and re- 

 sults from the Yedras Mill, Sinaloa, Mexico. 



The Elementary Biology, prepared by 

 R. J. Harvey Gibson, M.A. (Longmans, 

 $1.75), is a text-book adapted to college stu- 

 dents. It opens with a brief summary of 

 the principal conclusions of physics and 

 chemistry, dwelling especially upon those 

 laws on which biology immediately rests. 

 Many speculations and explanations in re- 



