1912.] NATURAL SCIENCES OF PHILADELPHIA. 559 



stibiotantalite, neptuneite, and benitoite from California, glauco- 

 phane from Italy, struverite from South Dakota, tourmaline from 

 Madagascar, and topaz from Texas. 



F. J. Keeley, 



Curator. 



Report of the Custodian of the Isaac Lea Collection of 



Eocene Mollusca. 



During the present year some important additions have been 

 made to the Isaac Lea Collection. 



These specimens represent three widely separated localities. 

 From the limestone quarry near Wilmington, North Carolina, 

 immediately overlying the Cretaceous bed, the specimens were 

 collected personally by the writer. The writer also collected the 

 specimens from the Oligocene bed at White Beach on Little Sara- 

 sota Bay, Florida. This bed, representing a small outcrop, is 

 located farther south than any other known Oligocene horizon in 

 the United States. 



The series of fossils from the Panama Canal zone were collected 

 by Dr. Amos P. Brown, and is a notable addition to the Isaac Lea 

 Collection. 



Until the present time none of the above-mentioned localities 

 have been represented in any of the collections of the Academy. 



All of these specimens have been identified by Dr. H. A. Pilsbry 

 and Dr. A. P. Brown. 



A list of the species from White Beach will be found in the Addi- 

 tions to the Museum. The collections from Wilmington and from the 

 Panama Canal zone, containing sixty or more new species, have 

 already been described in the Proceedings of the Academy. 



Joseph Willcox. 



REPORTS OF THE SECTIONS. 

 Biological and Microscopical Section. 



Nine regular and several informal meetings of th'e Section have 

 been held with the usual attendance. While the membership has 

 not increased during the year, the interest in microscopical work 

 has not diminished, although the change of room, necessitating the 

 removal and rearrangement of the books and collections, somewhat 

 interfered with the programme of several meetings. 



