20 THE AMERICAN BOTANIST, 



region are being studied, w^e feel that now we shall soori 

 know for certain who are the botanical worthies in the 

 vicinity; for there are always enough new species found to 

 allow one for each and leave a few over. It is the height 

 of the young collector's ambition to have a species named 

 in his honor and it must be exceedingly pleasing to him to 

 know that the hawthorn genus has been found to be elas- 

 tic enough to make this possible. In tiirte to come one 

 will only have to take down his botany and turn to the 

 volumes on Cratiegus to find a complete botanical direc- 

 tory, but we must insist that this scheme will never be 

 complete until some method is found for adding the ad- 

 dress of each person who figures in this botanical diptych. 



BOOKS AND WRITERS, 



Mr. J. Horace McFarland, well known for his excellent 

 photographs of botanical subjects has prepared a "Book 

 of Trees" which is to be issued in the fall by the Outlook 

 Company, It will be, of course, profusely illustrated. 



In June Dr. A.j. Grout published the first part of what 

 is intended to be a fairly comprehensive hand-boOk of the 

 mosses of the Eastern United States. It is entitled 

 "Mosses with a Hand-lens and Microscope" and is prac- 

 tically an elaboration of his earlier "Mosses with a Hand- 

 lens," The new work has the advantage of more and 

 better illustrations, a large number of plates having been 

 reproduced from "The Bryologia Europea" Sullivant's 

 "Icones"and other sources. The first part, in addition to 

 treating of several families of the mosses, is concerned 

 with such preliminar}^ matters as classification, nomencla- 

 ture and the study of mosses. The life history and struc- 

 ture of the moss is thoroughh^ described and there is a full 

 and well illustrated glossary. In the description of the 

 mosses, their distinguishing characters are printed in italic, 

 a very helpful feature to the beginner. (New York City, 

 published by the author, $1.00.) 



