ADDRESS 



DELIVERED BEFORE THE 



ESSEX COUNTY NATURAL HISTORY SOCIETY, 



SECOND ANNIVERSARY, 



Jute IS, 1836. 



BY JOHN LEWIS RUSSELL, A. M., 



PROFESSOR OF BOTANY AND VEGETABLE PHYSIOLOGY TO THE MASSACHU- 

 SETTS HORTICULTURAL SOCIETY, ETC. 



SALEM OBSERVER PRESS. 



