Natural Sciences of Philadelphia 
23 
series was arranged, containing at first only the winter species, but 
with the spring migrants added at the dates on which they appear 
about Philadelphia, so that the collection contained the species 
that one would find in the vicinity of the city at any given time. 
A similar series of pressed wild flowers from the herbarium was 
also on exhibition during the spring. 
Through the cooperation of the Ludwick Institute provision has 
been made in the coming year for a department of Public Instruc¬ 
tion, the head of which shall be a member of the Curators’ staff. 
Besides taking over the management of the lecture courses, which 
are already conducted by the Ludwick Institute, he will prepare 
educational exhibits, and have a general supervision of the public 
exhibition collections. Important results are looked for from this 
department, which will bring the Museum into closer touch with 
the schools and the general public, and relieve members of the scien¬ 
tific staff from duties that did not properly pertain to their work. 
While the museum staff has been constantly engaged in the 
study of material in the various departments, much valuable field 
work has also been accomplished. Mr. J. A. G. Rehn was sent 
to Santa Marta, Colombia, cooperating with Mr. Morgan Hebard, 
Research Associate in the Department of Entomology, and Mr. 
Frank Mason, a member, who had organized a trip to this region. 
Large numbers of insects were obtained, the collection of Orthop- 
tera being of chief interest, although series of Lepidoptera and Cole- 
op tera of almost equal extent were secured, as well as a valuable 
series of reptiles. 
Dr. Henry A. Pilsbry attended the Pan-Pacific Conference at 
Honolulu as the Academy’s delegate, and was able to obtain a val¬ 
uable collection of Hawaiian Mollusca supplementing that obtained 
by him in 1913. 
Dr. Henry Skinner made a trip to the vicinity of Glenwood 
Springs, Colorado, from there to the Sierra La Sal, in Utah, stop¬ 
ping at several other points on his return, and has presented the 
Academy with the valuable series of insects secured. 
Local collections of interesting plants and birds were made by 
Dr. Stone at Cape May, N. J.; of plants from various nearby local¬ 
ities by Mr. Bayard Long; and of fishes and reptiles by Mr. H. W. 
Fowler; while Mr. Samuel G. Gordon has made important geolo¬ 
gical studies along the southern tier of counties in Pennsylvania 
