1901.] NATURAL SCIENCES OF PHILADELPHIA. 747 
special subscriptions, while many private individuals have con¬ 
tributed results of their explorations to the institution. 
Under the former head may be mentioned the expeditions to 
Bermuda in 1888, Mexico in 1890, under the leadership of ADgelo 
Heilprin; the Greenland Expeditions of 1891 and 1892; Prof. 
Cope’s trip through the fossil beds of the West in 1893, and many 
minor collecting trips. 
Among private expeditions may be mentioned those of Dr. Ben¬ 
jamin Sharp to Hawaii and Alaska, Dr. W. L. Abbott to Africa, 
Dr. A. Donaldson Smith to Somaliland and Lake Rudolf, the 
Messrs. Farnum to Mongolia, while Mr. Alfred C. Harrison and 
Dr. H. M. Hiller are at present exploring Sumatra, partially in the 
Academy’s interest. 
Mr. Clarence B. Moore’s archaeological explorations in Florida 
and Georgia ; the exploration of the Port Kennedy fossil deposit, 
in the years 1894-96, under the direction of Dr. Samuel G. 
Dixon, assisted by Mr. H. C. Mercer; Mr. C. W. Johnson’s expe¬ 
ditions to the Southern fossil beds, under the direction of Dr. L. T. 
Chamberlain, and Mr. Henry G. Bryant’s expeditions to Labra¬ 
dor, Greenland and Alaska have also been productive of important 
results. 
The increase in collections, especially since modern methods have 
been instituted in the Museum, has been so continuous and impor¬ 
tant that it is impossible even to summarize it in this brief space. 
Some idea, however, may be gained from the statements furnished 
by several special departments. 
The Ornithological collection, which was formerly regarded as 
the Academy’s most notable department, contained at the time of 
Dr. Ruschenberger’s last report 24,000 specimens; to-day it num¬ 
bers 46,000. The Conchological department since 1887 alone has 
added 30,000 lots to what was before regarded as the leading col¬ 
lection in the world. Other collections have increased at nearly 
the same rate, as illustrated by 6,000 additions to the department 
of reptiles, mainly the private collection of Prof. Edward D. 
Cope, and one prepared by Mr. A. E. Brown; 14,000 to the col¬ 
lection of butterflies; the William S. Vaux Collection of Minerals; 
the Isaac Lea Collection of eocene fossils, for which we are 
indebted to the Rev. Leander Trowbridge Chamberlain, D. D., and 
the Clarence B. Moore Archaeological Collection. 
