February, 1843.] 245 



STATED MEETING, February 21, 1843. 

 Vice President Morton in the Chair. 



DONATIONS TO MUSEUM. 



A Collection of American Insects, (about 25 species.) Pre- 

 sented by Mr. Samuel B. Ashmead. 



A Collection of Shells from Great Egg Harbor. From Mr. 

 Thomas Beasley, through Mr. Ashmead. 



DONATIONS TO LIBRARY. 



Survey of the Boundary between the United States and 

 Texas. From Major Graham, U. S. Topographical Engi- 

 neers. 



Report of Dr. Lewis C. Beck on the Mineralogical and Che 

 mical Department of the Survey of the State of New York, 

 and 



Report of Dr. Torrey on the Botanical Department of the 

 same. From Dr. Morton, in exchange. 



WRITTEN COMMUNICATIONS. 



A letter was read from Major J. D. Graham, accompany- 

 ing his donation above mentioned. 



VERBAL COMMUNICATIONS. 



Professor Johnson exhibited some samples of sheathing copper from 

 the bottoms of vessels, which showed the effects of corrosion and attrition 

 after it had been in use for a very limited period, and alluded to the great 

 deterioration, of late years, in the quality of the commercial article, both 

 in this country and abroad. 



