VI PREFACE. 



the American Entomological Society, the Society of Natural 

 History at Boston, the Secretary of the Massachusetts Board 

 of Agriculture, the Essex Institute, the Smithsonian Institu- 

 tion, the Secretary of the Maine Board of Agriculture, and 

 to Mr. R. Hardwicke, the publisher of "Science-Gossip," 

 Prof. Sanborn Tenney, the author of "A Manual of Zo- 

 ology," and to his coeditors of the "American Naturalist," 

 for the use of many of the cuts, a list of which may be 

 found on the succeeding pages. 



Peabodt Academy of Science, 



SALEMjNov. 10, 1869. 



