Musci Acrocarpi Borea li- America ni 



Fascicle 13, Nos. 301-325 now ready. Price $2.00 per fascicle: Indispen- 

 sible to the working bryologist; early fascicles partly exhausted; order now. 



PROF. JOHN M. HOLZINGER, Winona, Minn. 



CANADIAN HEP ATIC AE.-Sets for sale. Nos. 1-20 



now ready, $1.50 per fas- 

 cicle of 20 numbers. Others to follow at same rate. Address 



MR. A. H. BRINKMAN, Dowling Lake, Alberta, Canada. 



NORTHWEST COAST PLANTS 



FOR SALE: — Four thousand sheets, one hundred orders: Collected from 

 Alaska to California, with many foreign specimens. Price: $80.00. Address, 



MR. ALBERT J. HILL, New Westminster, B.C., Canada. 



FOR SALE 



Wilky's Lichens of New Bedford, 1892. A few copies of this rare book. 



MR. R. HEBER HOWE, Jr., Concord, Mass. 



Manual of Mosses of Western Pennsylvania 



By O. E. JENNINGS, Ph. D., 



CARNEGIE MUSEUM AND UNIVERSITY OF PITTSBURGH 



A Manual, with full description and keys, dealing with all mosses known to 

 occur in the western half of Pennsylvania, including also species of adjacent 

 regions which are to be expected within the region covered. Illustrated by 

 fifty-four pages containing more than two thousand figures from original draw- 

 ings of specimens collected in the region embraced. 



Printed upon light, unglazed stock, bound in stiff paper, 6x9 inches, 429 pp. 



Edition limited to 250 copies; for sale at $2.75 each, by mail, $2.88. 



ADDRESS 



DR. O. E. JENNINGS 



CARNEGIE MUSEUM PITTSBURGH, PENNA. 



