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 

 AVorld 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. 



