Part IV. Mosses with Hahd-lens and Microscope. 
(80pp. Uo. ,Plat&$J)6-80, 18U-16A) 
ov 
Leskeaceæ—Hypnaceæ, will be ready about January 1st, 1908. $1J*6. Shall I send you a copy? 
Pts. 1-4, 326 pp., 80 full page plates, 210 figures in the text, $5.00. Part 5 will complete the work. 
“The book is admirable both in conception and execution.” Prof. C. R. Barnes, Univ. of Chicago, in 
Bot. Gazette for June, 1904. 
“The best elementary manual of mosses in any language.” Prof. J. M. Holzinger, Winona, Minn. 
State Normal, in Bryologist. 
“Must be considered the most important work that has yet been published on North American Mosses.” 
Prof. John Macoun, of the Canadian Geological Survey, in the Ottawa Naturalist for Sept. 1906. 
Sample pages on application. 
Mosses with a Hand-lens, (224 pp., 8vo., copiously illustrated) is a smaller book describing 150 mosses and 
50 hepatics that can be indcntified by means of the hand-lens alone. Specially adapted for beginners. $1.75. 
A. J. GROUT, Author and Publisher. 
360 Lenox Road, 
Brooklyn, N. Y. 
