KEPORT OF THE SECRETARY. 97 
to be far superior to any index of the kind ever published or, indeed, 
attempted. At the convention held in London in 1910 a committee 
was appointed and authorized to form shnilar combinations with 
the publishers of other indexes and j^earbooks, but, unfortunately, 
for various reasons it has not j^et been possible to form such com- 
binations to the extent authorized by the convention. 
Very respectfully, yours, 
Leonakd C. Gunnell, 
Assistant in Charge. 
Dr. Charues D. Walcxdtt, 
Secretary Smithsonian Institution. 
