vi INVERTEBRATA OF MASSACHUSETTS. 



manner, that the Report might be used as a school-manual for the 

 study of the Conchology of New England. Such a work is greatly 

 in demand, and nothing of the kind is in existence. 



I have also given a Catalogue of the Crustacea and Radiata which 

 have been noticed in the State ; and also such information as I have 

 been able to obtain concerning their economical uses and value. 



A few of the objects noticed in the Report, have been obtained 

 from fishes, and, perhaps, do not strictly belong to the waters of 

 Massachusetts. 



In addition to the Report, I have made a collection of all the 

 objects noticed in it. This collection is now deposited in the rooms 

 of the Boston Society of Natural History. It is desirable that it 

 should be preserved entire, for future reference. To this Collection 

 and to the Cabinet of the Natural History Society, the numbers in 

 the Report refer. 



Very respectfully, yours, &c., 



AUGUSTUS A. GOULD. 

 Boston, March 16, 1840. 



