A Text-Book | 
General Lichenology 
WitTH DESCRIPTIONS AND Fiscuis OF THE GENERA 
OCCURRING IN THE ; 
NORTHEASTERN UNITED STATES. 
BY 
ALBERT SCHNEIDER, M.S., M. D. 
The only modern work on North American Lichens, including a dis- 
cussion of their Morphology and Physiology, with a special reference to 
the phenomena of symbiosis. 
Large octavo, 230 pages, 76 full-page plates. Price in paper, $7.80; 
in cloth, $4.25. 
Sample pages will be sent on application. 
Published by 
WILLARD N. CLUTE & COMPANY, 
BINGHAMTON, N, Y. 
Mosses of the Southern United States. 
Now READY. 
The First 51 Numbers of the Distribution, Price, $5.00. 
Address, J. K. STIALL, 
41 E. 49th St., New York. 
Chapman’s Southern Flora. 
Third Edition. 
Sent postpaid on receipt of price, $4.00. 
Published by 
Cambridge Botanical Sinsptis Co., 
1286 Massachusetts Avenue, Opposite College Library, 
Cambridge. Mass. 
