Proceedings of the Boston Society of Natural History. 
Vol. 36, No. 1, 
p. 1-103, pis. 1, 2. 
CONTRIBUTIONS FROM THE GRAY HERBARIU:M OF 
HARVARD UNIVERSITY. New Series.— No. LXII. 
SABLE ISLAND, WITH A CATALOGUE OF ITS VASCULAR PLANTS. 
By Harold St. John. 
BOSTON : 
PRINTED FOR THE SOCIETY. 
March, 1921. 
