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 anv 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. Pilsbrv 
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 the 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. 
