1919.] 
NATURAL SCIENCES OF PHILADELPHIA. 
307 
The Indian elephant “Bolivar,” which had never been a suitable 
specimen for mounting, deteriorated to such an extent that it was re¬ 
moved and dismounted during the autumn. 
Five storage cases for mollusks and five for birds’ nests and eggs, 
with the necessary trays were secured with the balance of the State 
appropriation of 1917. The latter have been arranged in the hall¬ 
way on the fourth floor forming a small room in which the entire 
oological collection will be arranged. 
Special educational exhibits were installed during the spring. One, 
consisting of mounted wild flowers from the herbarium, was displayed 
inside the large cases containing the forestry exhibit and was added 
to from time to time as the season advanced, so that it illustrated 
at any time the wild flowers to be found in bloom in the vicinity 
of Philadelphia. 
The other consisted of bird skins from the study collection, the 
winter species being installed first and the others on approximately 
the date at which they arrive from the South so that the series at all 
times showed the wild birds to be found about the City. These col¬ 
lections were an innovation and attracted much attention among 
students of local natural history and the classes of school children 
which visited the museum in large numbers. 
While most of the time of the museum staff was fully occupied in 
the care of the collections, it was also possible to do considerable 
field work. 
Dr. Stone was granted leave of absence for three months, May 15, 
to August 15, and visited the Chiricahua Mountains, southern Ari¬ 
zona, the expenses being largely born by the Redfield botanical fund. 
He obtained a large collection of plants from a region not heretofore 
represented in the Academy’s herbarium, as well as several thou¬ 
sand insects, and many‘birds, mammals and reptiles. The success 
of this expedition was largely due to the generosity of Mr. J. 
Eugene Law of California, who had invited Dr. Stone to be his 
guest at his camp in the Chiricahuas and did everything in his power 
to further the interests of the Academy. In the same connection 
the Academy is under obligations to Mr. Frank H. Hands of 
Pinery Canyon in the same mountains. 
Mr. Morgan Hebard conducted another expedition to the south¬ 
western United States during July, August and September primarily 
for the collection of Orthoptera visiting such localities as the Death 
Valley,MtsAYhitney, San Gorgonio and Charleston. As on previous 
