REVIEWS AND NOTICES OF BOOKS. 24 1 



of forests against insect and fungous pests, and among the latter 

 the larch canker disease receives by far the greatest amount of 

 consideration. 



It is impossible, in a short review, to do justice to this 

 admirable book. We recommend its perusal by the land-owner, 

 land-agent, and forester alike, but the price at which it is 

 published will, it is to be feared, prevent the majority of foresters 

 from taking full advantage of its iformnation. A. T. G. 



Trees: a Handbook of Forest-Botany for the Woodlands and 

 the Laboratory. By H. Marshall Ward, Sc.D., F.R.S., 

 etc. Vol. I. "Buds and Twigs"; "Vol. II. "Leaves." 

 Cambridge University Press, 1904. Price 4s. 6d. net each. 



This is one of the Cambridge Biological Series of handbooks, 

 and the volumes on " Buds and Twigs " and " Leaves "' are the 

 first of a series intended " to provide students of Forest-Botany 

 with a guide to the study of trees and shrubs from the point of 

 view of the out-door naturalist," but which the author hopes will 

 also "interest them in certain methods of laboratory work." Each 

 volume is divided into two parts, " General " and " Special," the 

 general parts dealing with the structure, etc., of buds and twigs and 

 leaves respectively, while the special parts deal with the method 

 of using these parts of the plant for identification purposes. 



It goes without saying that, coming from a botanist of 

 Professor Ward's standing, the book is a valuable addition to 

 Forestry literature, and it is, moreover, the first really scientific 

 work of its kind in the English language. The author has 

 striven to put his facts before his readers " in language devoid 

 of technicalities," and in this he has fairly well succeeded ; but, 

 on the other hand, he has, in one instance at least, introduced 

 unnecessary complication. According to Professor Ward's 

 definition, a " shoot " is no longer a shoot after it has completed 

 its growth in length. After growth in length has been completed, 

 the shoot, whether evergreen or deciduous, becomes a "twig"; 

 but the author himself demonstrates the difficulty that confronts 

 one in drawing such a distinction as this, for he uses the 

 terms "long-shoot" and "dwarf-shoot" (the latter in the case 

 of a twig of beech eleven years old in one instance), where, to 

 be consistent, the terms " long-twig " and " dwarf-twig " should 

 be applied. 



VOL. XVIII. Q 



