TWENTY-FIRST ANNUAL REPORT 49 
chased to the extent of $299.39, and the account shows a balance 
of $295.29, on December 31, 1916. 
The Society hopes during the coming year to secure $5,000 
for the purchase of books and periodicals especially devoted to 
the conservation of wild life throughout the world, so that the 
Zoological Park Library may ultimately contain all the literature 
on this subject which is published. The books themselves are 
not expensive, but:the services of a trained librarian are neces- 
sary to collect and tabulate the widely scattered and fugitive lit- 
erature on the subject. A complete conservation library would 
be of great service to the great cause of wild life protection. 
NATIONAL COLLECTION OF HEADS AND HORNS. 
The only sources of income for this fund are transfers from 
the general Income Account of the Society, and private sub- 
scriptions. One transfer of $600 was made during the year. 
Mr. Watson B. Dickerman subscribed $175, and Mr. John J. 
Paul, $15. These amounts together with the balance of $320.36 
on hand January 1, 1916, made a total of $1,110.36 available 
for expenditure. 
Heads and horns at a total cost of $1,131.47 have been pur- 
chased, and the account closes the year with a balance of $78.89. 
Among the acquisitions to the collection during the year have 
been a world-record Himalayan Ibex Head; a magnificent pair 
of antlers of the Megaceros or Irish Elk, secured from the Gil- 
ford collection at Orange, N. J.; a splendid Tibetan Argali Head, 
gift of Mr. W. B. Dickerman; a pair of antlers of the Tian Shan 
Wapiti, gift of Col. H. Appleton, of the British Army; a fine pair 
of mounted heads of the Philippine Water Buffalo, gift of Hon. 
Francis Burton Harrison, and a Musk-Ox skull and horns from 
Point Barrow, Alaska, gift of Charles D. Brower. 
HEADS AND HORNS MUSEUM. 
The most important event during the year was the raising 
of the sum of $100,000, chiefly through the energy of the Direct- 
or of the Park, Dr. Hornaday. This sum will be devoted to the 
erection of a museum to contain the Society’s magnificent col- 
lection of heads and horns, now rapidly becoming the finest in 
