TO THE 



REV. CHESTER DEWEY, M. D., D. D., 



PROFESSOR OP NATURAL SCIENCE IN' THE BERKSHIKK AND OTHER MltDICAL 



IKSTIIUTIONS, AUTHOR OF THE REPORT ON THE HERBACEOOS 



PLANTS OF MASSACHUSETTS, MONOGRAPH ON 



THE CARICES, ETC. ETC. 



THIS VOLUME 



IS RESPECTFULLY DEDICATED, BY 



THE AUTHOR. 



