NEW BIOLOGICAL BOOKS 



587 



a reprint of a series of articles recently 

 appearing in the New Phytologist. 



MUSHROOMS AND TOADSTOOLS . An 

 Account of the More Common Edible and 

 Poisonous Fungi of Canada. 

 By H. T. Giissow and W. S. Odell. 



Division of Botany, Dominion Experimental 



Farms 

 $1.00 8| x 10; Z74 Ottawa 



This account of the higher fungi by the 

 Dominion Botanist of Canada "is not 

 intended as a 'learned treatise,' but is 

 meant to appeal to students as well as 

 nature lovers, who wish to know the many 

 odd or beautiful forms of fungous growth 

 they may happen upon in their country 

 rambles." Most of the species described 

 — nearly two hundred in number — also 

 occur in the United States. The book is 

 illustrated with two color plates and 12.6 

 plates of excellent photographs, and 

 includes recipes for cooking mushrooms, 

 directions for mushroom culture, a section 

 on poisoning by fungi, bibliography, 

 glossary, and indices. 



CLIMATIC CYCLES AND TREE- 

 GROWTH . A Study of the Annual Kings of 

 Trees in Relation to Climate and Solar Activity. 

 Carnegie Institution of Washington Publica- 

 tion No. 289. Vol. II. 

 By A. E. Douglass. 



Carnegie Institution of Washington 

 $i.75 (paper) Washington 



$3.75 (cloth) 



6| x 10; vii + 166 

 The annual rings of trees seem obviously 

 designed to furnish a record of climatic 

 history, as soon as we have learned to 

 interpret them. The present volume gives 

 an excellent account of the technique of 

 obtaining the record, and of its interpreta- 



tion as at present developed. It must be 

 admitted that much work has still to be 

 done before the interpretation of the 

 record can be regarded as reliable; but 

 the results already obtained are full of 

 promise. 



DONNEES RECENTES SUR LES MIC- 

 ROBES ANAEROBIES ET LEUR ROLE 

 EN PATHOLOGIE. 



By M. Weinberg and B. Ginsbourg. 



Masson et Cie 

 35 francs 6J x 10; Z91 (paper) Paris 



A comprehensive review of the work 

 done on pathogenic anaerobes during and 

 since the World War. The volume is 

 issued as a monograph of the Pasteur 

 Institute. The bibliography, which is 

 classified under broad subject headings, 

 covers 47 pages of fine print. The book 

 will be a valuable addition to every 

 bacteriological library. 



THE USEFUL PLANTS OF THE 

 WORLD. 



By Willard N. Clute. 



Willard N. Clute and Co. 

 $1.50 5! x 8§; v + 86 Joliet, III. 



This is a practical kind of book discuss- 

 ing the various plants used for foods, 

 condiments, beverages, drugs, dyes, gums, 

 soaps, textiles, wood products and even 

 those used for decorative purposes. At 

 the back of the book there is a list of 

 economic species, but there is no index. 



BEAUTIFUL FLOWERS OF KASHMIR. 



By Ethelbert Blatter. 



John Bale, Sons and Danielsson, Ltd. 

 zi shillings London 



5§ x 8f ; xv + 198 

 This book contains the description of a 



QUAB. REV. BIOL., VOL. Ill, NO. 4 



