Reference Negatives and Photographs 55 



Negatives made, 957; Prints made, 13,073; Lantern Slides 

 made, 3,363; Enlargements made, 370. As shown by the ac- 

 cession list, our photographic files have been further increased 

 during the year, by purchase : 345 negatives ; by gift : 515 nega- 

 tives and 299 lantern slides. 



There are now in the reference file 48,286 negatives and 65,- 

 583 photographic prints. 



During the year, the motion picture library has been in- 

 creased as follows: 1,830 feet illustrating the life and haunts 

 of John Burroughs; 450 feet illustrating the building of the 

 Liberty Hospital Model; 1,500 feet of negative and 5,000 feet 

 of positive, illustrating natural history subjects, made by Roy 

 C. Andrews; 1,000 feet showing whaling in Japan made by the 

 Dorsey Expedition ; and 3,000 feet showing Australian natives 

 made by Mr. Marshall Rhodes. 



During the year 1918, the department has had the coopera- 

 tion of the following firms and individuals : 



Mr. Alfred W. Abrams of the Division of 

 Acknowledg- Visual Instruction, Department of Education, 

 Albany, N. Y., in lending dies for cutting lantern 

 slide mats ; The New York State College of Forestry in lend- 

 ing negatives of Forestry subjects with permission to make 

 lantern slides and duplicate negatives for our files; The New 

 York Historical Society in permitting the use of books and 

 plates in the preparation of illustrated lectures; New York 

 State Conservation Commission in lending motion picture 

 films of forestry for use in lectures to school children ; Brown 

 Brothers in lending photographs for lantern slides for use in 

 lectures to school children; The New York Botanical Garden 

 in lending lantern slides for use in our educational lectures, 

 and Miss Paula C. Lambert for help in preparing lecture sets 

 for our loan series. 



As the Curator's time is largely taken up with other admin- 

 istrative duties, the detailed supervision of the 

 work has fallen upon the Associate Curator, 

 Doctor G. Clyde Fisher, while the contact with the libraries 

 and the blind has been under the immediate direction of Miss 



