July, 1842.] 193 



reference to his donation of fossil bones and shells of this 

 evening; and also containing a list of the specimens. 



VERBAL COMMUNICATIONS. 



Dr. Chaloner exhibited a specimen of a small Trilobite, said 

 to have been taken from a coal excavation at the Bear Gap, 

 about 14 miles from Pottsville, Pa., along with the fern im- 

 pressions so numerous in such excavations. Some doubts 

 were expressed by Dr. Chaloner as to the correctness of his 

 informant. He was desirous, however, of calling the attention 

 of the members to the subject. 



In relation to the donation of Minerals this evening, Mr. J. 

 A. Clay remarked, that they exhibited in a striking manner, 

 the identity of certain Magnesian minerals of the U. States, 

 and especially of those of Chester county, Pennsylvania, with 

 the Picrosmine, Metaxite, &c. of Europe. 



BUSINESS BY SPECIAL RESOLUTION. 



On motion of Professor Johnson, Resolved, That the 2d 

 Part of the 7th Vol. of the Journal of the Academy, be pre- 

 sented to M. de Longchamps, of Leige. 



