AN ILLUSTRATED FLORA 
OF THE 
NORTHERN UNITED STATES, CANADA 
AND THE BRITISH POSSESSIONS 
From Newfoundland to the Parallel of the Southern Boundary of Virginia, and 
from the Atlantic Ocean Westward to the 102d Meridian 
By 
NATHANIEL LORD BRITTON, Ph.D., Sc.D., LL.D. 
Director-in-Chief of the N. Y, Botanical Garden; Professor in Columbia University 
And M 
HON. ADDISON BROWN, A.B., LL.D. 
President of the New York Botanical Garden 
Three Volumes. $13.50 Special Net; Expressage extra 
SECOND EDITION—REVISED AND ENLARGED 
CHARLES SCRIBNER’S SONS 
FIFTH AVENUE AT 48th STREET NEW YORK 
American fern Journal 
An illustrated quarterly devoted to the general study of ferns, Subscription, with 
membership in the AMERICAN FERN SOCIETY, $1.00 per annum; without mem 
bership, 90 cents. Volume I, six numbers, $2.00; other volumes, $1.00 each, Matter 
or publication should be sent to R. C. BENEDICT, 322 East 19th Street, Brooklyn, 
N. Y,; subscriptions and other business communications to E, J. WINSLOW, Auburn- 
Mass. 
THE BRYOLOGIST 
THE ONLY MAGAZINE IN THE WORLD RELATING 
EXCLUSIVELY TO THE STUDY OF MOSSES, 
HEPATICS, AND LICHENS 
Illustrated with original drawings and half-tones. Twenty-first volume 
begins with January, 1918. Send for sample copy; subscription price 
$1.25 per year. Address 
EDWARD B. CHAMBERLAIN, 
18 West 89th Street, NEW YORK CITY. 
