88 JOURNAL OF THE l]^^, 



Mr. Balen stated that his specimens of Volvox were also taken 

 from a pool with water so foul that the Volvox could not be seen. 

 They appeared to thrive under the circumstances, and many spe- 

 cimens showed that they contained within an astonishing number 

 of young forms. 



The Society adjourned to meet on the first Friday .of October, 

 1894. 



An Introduction to Structural Botany. By Dukinfield 

 Henry Scott, Jodrell Laboratory, Kew, London. 113 fig- 

 ures. London : Adam & Charles Black, 1894. Pp. 288. 

 Trice, $1. 



This is intended to be a first guide to the study of the structure of plants 

 in schools. It treats of three types of phanerogams — the Wallflower, the 

 White Lily, and the Spruce Fir — and seems well adapted to its purpose. 



Practical Botany for Beginners, By F. O. Bower, Profes- 

 sor of Botany in the University of Glasgow. 13 figures. New 

 York : Macmillan & Co., 1894. Pp. 275. Price, 90 cents. 

 An excellent condensed guide to biological laboratory work for beginners, 



conducting them through the microscopical examination — sectioning and 



mounting — of many selected types of plants, from the highest to the lowest 



orders. 



A Manual of Microchemical Analysis. By Prof. H. Beh- 

 RENS, Polytechnic School, Delft, Holland, with an introduc- 

 tory chapter by Prof, John W. Judd, Royal College of Sci- 

 ence, London. 84 figures- New York : Macmillan »& Co., 

 1894. Pp. 246. Price, $1.50. 



The English translation of this work is by the author, Prof. Behrens, and 

 it is devoted mainly to the qualitative microchemical wet methods of the 

 examination of the rock-forming minerals. Part I, contains the general 

 method, and the reactions of sixty-three minerals. Part II. contains the ana- 

 lytical examination of mixed compounds. The work is one of Macmillan's 

 Manuals for Students, under the division of chemistry, and is a late sum- 

 marization of the labors of most eminent men in this branch of study. To 

 those who are engaged in crystallography and petrography it would seem to 

 be invaluable. 



