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 AUTHOE. 



