TO THE 
REV. CHESTER DEWEY, M. D., D. D., 
PROFESSOR OF NATURAL SCIENCE IN THE BERKSHIRE AND OTHER MEDICAL 
INSTITUTIONS, AUTHOR OF THE REPORT ON THE HERBACEOUS 
PLANTS OF MASSACHUSETTS, MONOGRAPH ON 
THE CARICES, ETC. ETC. 
THIS VOLUME 
IS RESPECTFULLY DEDICATED, BY 
THE AUTHOR. 
