SEVENTH ANNUAL REPORT. 69 



success in this line of work. It is my belief that no other line 

 of photography presents difficulties equal to this. To " make a 

 snapshot " of an animal through its bars, at long range and with- 

 out choice of position, is easy enough; but such results are of so 

 little value they are not worthy of serious consideration. A bunch 

 of fur, sans feet and tail, and with poor facial details, is not a 

 portrait fit to represent a species. To secure animal photographs 

 which are of value, Mr. Sanborn finds it absolutely necessary to 

 choose a period of good light, secure the assistance of keepers 

 to drive animals into position, enter the enclosures of all save 

 the large felines, and work until good pictures are secured. With 

 some very difficult subjects a dozen negatives are exposed be- 

 hind the finest lenses in order to secure one that fairly represents 

 the species. 



Although the Society's Photographic Department was estab- 

 lished but recently, it has secured fine negatives of 9 species 

 of bears, 17 species of deer and other hoofed animals, about 30 

 species of carnivorous animals, about 60 species of apes, monkeys, 

 lemurs, rodents, marsupials, and edentates, about 30 species of 

 birds, nests, etc., and 25 species of reptiles. As soon as the ac- 

 cumulation of pictures has progressed to a proper point the 

 Society will begin the issue of publications which will place the 

 best of these results in the hands of its members. 



In addition to his photographic work Mr. Sanborn constantly 

 renders very valuable editorial service in connection with the 

 production of the Annual Report, Bulletin, and Guide Book. 



It should be noted at this point that all expenses connected 

 with the production of photographs, including Mr. Sanborn's 

 salary, are paid from the general fund of the Society. 



ENGINEERING DEPARTMENT. — Geovgc M. Bcerhozvcr, Civil 



Engineer. 



During the past year the work of this department has been 

 unusually varied and important. Mr. Beerbower furnished all 

 the plans, details, and specifications for the four new bear-dens, 

 superintended the iron construction, and took entire charge of 

 the construction of the Beaver Valley and Mountain Sheep Walks. 

 He made a detailed map of the water supply, sewers, and drains 

 of the entire park, and laid out an adequate system of drains for 

 the Buffalo Range, one-half of which has been constructed. In 

 co-operation with the Real Estate Title Guarantee Company's 

 engineer, ^Ir. Beerbower surveyed the eastern boundary of the 



