2 6 Report of the President. 



All of these specimens will be of great value to our Exhibition 

 Hall. In return we have sent out collections which are highly 

 appreciated and will carry the name and work of the Museum 

 abroad. 



Steady progress has been made in the Exhibition Hall. The Cura- 

 tor especially calls attention to the mammoth sea lizard skeleton 

 and seven complete limbs and a number of other specimens of 

 Dinosaurs ; also to a beautiful slab of rock from Colorado, con- 

 taining the skulls and skeletons of five fossil mammals, making a 

 rare and beautiful exhibit ; also finally to many new smaller 

 installations. 



Photography has become of increased importance both in con- 

 nection with exhibition and publication. We have now developed 

 an almost perfect system of photography. Our field negatives are 

 systematically arranged in large albums, and the negatives duly 

 numbered as the permanent property of the Museum. Enlarge- 

 ments are used in the cases showing the process of discovery and 

 excavation of the specimens in the field, and photographs are 

 used in connection with descriptive labels to illustrate typical 

 specimens in the several departments. 



Department of Entomology. — The Hoffman collection of 

 South American and Indian Butterflies has been placed on exhibi- 

 tion. The Rev. Dr. Hoffman has donated 300 additional speci- 

 mens during the year. 



The Local Collection of Insects has been transferred from the 

 north wing to the gallery of the main building (No. 304). Over 

 5,000 specimens have been added to the collection, which now 

 contains about 75,000 specimens. About 2,000 more are ready 

 to be added as soon as the species can be identified. As it stands 

 at present, lacking the complete life histories of the insects, the 

 collection leaves much to be desired both from the scientific and 

 educational standpoints. In the east wing (No. 302) about 500 

 new specimens have been placed on exhibition. The important 

 study collection of Beetles is being assorted and properly arranged. 

 All the collections have been examined and poisoned, to insure 



