24 
About a hundred birds, mounted at the Museum, have been 
added to the Exhibition Collection during the year. Also several 
fine groups of Water Birds, including the Labrador Duck group. 
To the Study Collection have been added nearly 750 specimens 
from tropical America, and about 600 from Florida. The 
principal gift to this department has been received from Mr. 
W. E. D. Scott, as noted above. 
During the year about 2000 labels for the South American 
mounted birds have been prepared and printed ; about 1200 Old 
World mounted birds have been carefully identified and cata- 
logued, preparatory to labeling. The additions made to the Study 
Collection during the year have also been identified, labeled and 
catalogued ; the Mearn's Collection, received last year, number- 
ing some 4000 specimens, is nearly catalogued. 
The exchange of duplicates gives us not only much new material, 
but we are able in this way to secure many valuable specimens 
not otherwise obtainable. 
The use of our collections by specialists is steadily increasing, 
and the pleasant reciprocal relations between this Museum and 
the leading investigators and museums of this country, mentioned 
in the report for last year, still continue. 
As an outcome of the scientific investigation of the Museum 
collections during the year, the Curator and his Assistant have 
prepared the following papers, printed in No. 1, Vol. Ill, of the 
Museum Bulletin, aggregating 178 pages : 
1. On Seasonal Variation in Color in Sciurus hudsonius. By 
the Curator. 4 pp. Published June, 1890. 
2. A Review of some of the North American Ground Squir- 
rels of the Genus Tamias. By the Curator. 72 pp. Published 
June, 1890. 
3. On a Collection of Birds made by Mr. Clark P. Streator in 
British Columbia, with Field Notes by the Collector. By Frank 
M. Chapman. 36 pp. Published October 8, 1890. 
4. Descriptions of a New Species and a New Subspecies of the 
Genus Lepus. By the Curator. 2 pp. Published October, 1890. 
5. List of Mammals collected by Mr. Clark P. Streator in 
British Columbia, with Descriptions of two New Subspecies of 
Sciurus. By the Curator. 8 pp. Published November 14, 1890. 
6. Notes on a Small Collection of West Indian Bats, with 
Description of an apparently New Species. By the Curator. 
5 pp. Published November 14, 1890. 
7. Notes on Collections of Mammals made in Central and 
Southern Mexico, by Dr. Audley C. Buller, with Descriptions of 
New Species of the Genera Vespertilio, Sciurus, and Lepus. By 
the Curator. 20 pp. Published December 10, 1890. 
