S13 
1903.] NATURAL SCIENCES OF PHILADELPHIA. 
The officers elected for the following year are as follows: 
Director 
Vice-Director, 
Conservator , . 
Recorder, 
Corresponding Secretary, 
Treasurer. 
J. Cheston Morris, M.D. 
T. Chalkley Palmer. 
F. J. Keeley. 
C. S. Boyer. 
S. L. Schumo. 
Thomas S. Stewart, M.D 
Charles S. Boyer, 
Recorder. 
CONCHOLOGICAL SECTION. 
The Conservator respectfully reports that the increase of the col- 
lection during the year has been very satisfactory, as shown by the 
list of accessions to the Museum. The general condition of the cabinet 
is practically unchanged from last year, and no substantial improve- 
ments in the arrangement of material can be made until more cases 
are supplied. As it does not seem desirable to enlarge our exhibition 
series of shells, it is recommended that a number of cases in the form 
of stacks, and about as high as the cases in the library, be built to 
contain series which it is not advisable to exhibit, either from the small 
size of the shells, the external uniformity of large numbers of species, 
or other reasons. These stacks may be placed in an enclosed space 
on the upper gallery or, better, on the lower floor of the Museum. 
In March and April of this year the Conservator made a conchologi- 
cal reconnaissance of portions of the Ozark uplift in western Arkansas 
and Indian Territory, and of western Texas. The collection made 
comprises about 660 lots of mollusks, 163 reptiles of 34 species, 300 
sheets of plants, and small collections of fossils, fishes, etc. It is be- 
lieved that this collection adds materially to our knowledge of the 
mollusks of the Southwest. The study of this material is not yet, 
completed. 
Other collections worked upon during the year have been received 
from Mr. Hirasc, including a large number of new species and affording 
a great mass of valuable zoogeographic data. A collection obtained 
by Air. Clarence B. Moore in western Florida, reported on by Mr. 
Yanatta, adds considerable to our knowledge of the molluscan 
fauna of the north shore of the Gulf of Mexico. Many smaller acces- 
sions have also been determined and reported upon. 
The Conservator has completed systematic studies on the families 
