PROCEEDINGS OF THE ACADEMY OF 
924 
[Dec., 
We have also been favored with a set of duplicates of Japanese fresh- 
water bivalves from the Imperial Museum at Tokyo. 
The study of the mollusca collected by Mr. J. H. Ferriss and the 
Curator in the Southwestern expedition of 1903 has now been com- 
pleted and a full report thereon prepared. The collections made in 
the Southwest by Dr. H. Skinner, T. D. A. Cockerell, Joshua and Albert 
Baily and others have been included in this report. 
A series of Alabama mollusks, supplementing that obtained last year, 
has been purchased from the veteran collector, H. H. Smith. 
Numerous members of the Academy and correspondents of the 
Curator have also contributed largely to the collection. A list of these 
gifts is given in the Accessions to the Museum. 
Seventeen papers, based chiefly upon new material, have been pub- 
lished during the year by the Special and Assistant Curators of the 
department. 
All of the Pliocene invertebrate fossils in our possession have been 
gathered together and installed in two large cases in the gallery for- 
merly occupied by birds. 
A large part of the Special Curator’s time has been occupied with the 
preparation and publication of the Manual of Conchology, in which 
the family Achatinidoe is dealt with. 
Mr. E. G. Yanatta has continued his efficient work as assistant in 
the department throughout the year. 
H. A. PlLSBRY, 
Special Curator. 
REPORTS OF THE SECTIONS. 
The Miner alogical and Geological Section. 
The Section has this year with increased zeal and yet better results 
continued its meetings and field excursions. 
There have been nine meetings, with an average attendance of over 
14. Communications were made by Dr. Florence Bascom, on the 
Piedmont belt of Pennsylvania, and on the crystalline rocks of the 
Coatesville and Phcenixville Quadrangle; by Mr. Gilbert Van Ingen, on 
fossils of southwestern Arkansas (illustrated by lantern slides); by Mr. 
S. IT Hamilton, on moulders’ sands; by Mr. F. Lynwood Garrison, on 
Santo Domingo (illustrated by lantern slides) ; by Miss Mary S. Holmes, 
on asphaltum in California ; by Dr. Benjamin L. Miller, on the geology 
