REVIEWS OF BOOKS. 



323 



a welcome addition to the library of every cultivator of plants. In this 

 book all the more common diseases of cultivated plants of the fields and 

 gardens both of this country and of other countries are accurately described 

 in sufficiently simple language so that any gardener may be able generally 

 to ascertain what particular pest is troubling his plants. Excellent 

 figures enhance the value of the descriptions, and preventive measures 

 are described in the majority of cases. A valuable chapter deals with the 

 general methods of treatment in combating fungal diseases, and another 

 gives recipes for the making of various fungicides. In this third edition, 

 twenty pages are inserted near the beginning, describing some of the 

 diseases that have, during the four years that have elapsed since the 

 publication of the first edition, proved more than usually troublesome. 



" Getting acquainted with the Trees." By J. H. fyEcFaiiand. 8vo., 

 241 pp. (The Outlook Company, New York : Macmillan, London.) 

 7s. 6d. net. 



A pleasant book, written by one who has learned to know and love 

 trees in the hope that others may learn to know and love them too. The 

 more familiar trees of the United States are dealt with in a style easy to 

 read, and while the statements made are accurate, there is no pretence 

 to the writing of a botanical treatise. The trees on which the author 

 discourses are illustrated by many admirably chosen and reproduced 

 photographs and by tinted pictures, over some of which the letterpress 

 is printed. The whole " get-up " of the book is worthy of its contents. 



" Physiological Botany." By Professor George L. Goodale, A.M., M.D. 

 8vo., 499 pp. Appendix 36 pp. (American Be ok Company : Macmillan, 

 London.) 10s. Gd. 



This book, which forms Part II. of " Gray's Botanical Textbcok," has 

 already passed through five editions, a fact which speaks much for its 

 value. It contains a full account of the minute structure of flowering 

 plants, such as is necessary for the proper understanding of the way a 

 plant does its work, and gives directions to the student as to how to 

 proceed in verifying the statements made. Then follow chapters on the 

 physiology of flowering plants, written in a clear manner, easy to be 

 understood. To any who wish for some knowledge of the manner of 

 plant growth, the way plants feed and reproduce themselves, this book 

 may be confidently recommended. 



" Lectures on Plant Physiology." By Dr. Ludwig Jost, Professor of 

 Botany in the University of Strasburg. Authorised English transla- 

 tion by R. J. Harvey Gibson, M.A., F.L.S., Professor of Botany in the 

 University of Liverpool. (Clarendon Press. 1907.) 



The increasing number of compilations on plant physiology gives 

 cause for regret that the subject has not yet been deemed worthy of the 

 treatment now so generally adopted in animal physiology — namely, a series 

 of monographs or memoirs, each written by the authority most competent 

 to deal with the matter in hand— on the plan of Schiifer's " Text- book of 

 Physiology " and other recent publications. In the book before us there 



