Complete Sets of the Bryologist 
Through the recent reprinting of the early issues it is now 
possible to supply complete sets of The Bryologist for $15.00 ; 
Ten-year Index, $1.00 extra. Early volumes, containing detailed 
articles for beginners, will be sold separately as long as possible 
without breaking sets. Prices on application. 
EDWARD B. CHAMBERLAIN 
18 WEST 89TH STREET NEW YORK CITY 
ODD NUMBERS 
of American Scientific Publications bought and sold. Complete your sets, 
and get cash for your odd numbers and duplicates. I can supply 
Bull N. Y. Bot. Garden, Nos. 1-17 $10 00 
Fern Bulletin, Vols. vii to xix, incl 9 00 
Torreya, Vols. i-vii 7 00 
Memoirs Torrey Botanical Club, Vols. i-xiii 3:5 00 
Plant World, Vols. i-x 15 00 
Rhodora, Vols. i-xiv, incl., 10 00 
American Botanist, Vols. i-xviii 10 00 
Natural History of New York; Botany, by John Torrey, 
Vols. i and ii, with 162 colored plates 10 00 
Fresh Water Rhizopods, by Leidy 5 00 
Address: 
Dr. A. J. GROUT, New Dorp, Richmond Bor., New York City. 
Manual of Mosses of Western Pennsylvania 
By O. E. JENNINGS, Ph. D., 
CARNEGIE MUSEUM AND UNIVERSITY OF PITTSBURGH 
A Manual, with full descriptions 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 $2.7 5 each, by mail, $2 88. 
ADDRESS 
DR. O. E. JENNINGS 
CARNEGIE MUSEUM PITTSBURGH, PENNA. 
