236 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 
considerable change has taken place, both England and America 
now possessing a pretty extensive forestry literature of a technical 
kind, and Professor Gerschel has therefore in this edition made 
the addition which he then contemplated; and he explains that 
the promise of assistance which he received from Professor Fisher, 
of Coopers Hill, to whom he acknowledges his indebtedness, 
enabled him all the more readily to decide on this course. 
Professor Gerschel has also incorporated in this edition a certain 
number of the terms used in connection with game and fish 
culture, since these are subjects of special instruction at the 
forest schools. . 
This small work on Forest Terminology will be of much service 
to students of forestry, as well as to others who wish to know the 
French and German equivalents for the many technical terms 
now used in English forestry literature. The book consists of 
three parts—(a) French—English—German; (4) English— 
French—German; and (¢) German—French—English; and in 
each part the terms are arranged alphabetically, so that any one, 
the equivalent of which in either of the other languages is desired, 
can be found with ease. A.: Dit 
Manual of the Trees of North America (exclusive of Mexico). 
By CHARLES SPRAGUE SaRGENT, Director of the Arnold 
Arboretum of Harvard University. Houghton, Mifflin 
and Co., Boston and New York; the Riverside Press, 
Cambridge (Mass.), 1905. Price $6.00 net. (English 
Publishers, Archibald Constable & Co., Limited, London.) 
As the author of the monumental work Zhe Silva of North 
America, the greatest of its kind which has ever been produced, 
Professor Sargent has earned for himself a world-wide reputation, 
and has established himself as the greatest living authority on 
North American trees (and shrubs). But the Sz/va is a work 
the chief interest in which lies in its value to the scientist, and 
its great size and cost have placed it beyond the reach of all 
excepting the most affluent. Professor Sargent has therefore 
done a great service to lovers of trees generally in focusing the 
material of the Si/va in a handy’ volume, which can be easily 
carried about, and which has been produced at a price which 
will bring it within the reach of most people who take an interest 
in American trees. In the J/anual Professor Sargent has 
