SIXTEENTH ANNUAL REPORT 95 



from the outside, and as they pass through the ribs, of increasing 

 their actinic quality. With reflecting surfaces of white, instan- 

 taneous exposures will be possible. A rapid exposure m a gal- 

 lery of this type yields a finer result than the same exposure out 

 of doors. The reason is obvious. In strong, direct light there 

 are large patches of light and shade only; while with strongly 

 diffused light of highly active quality, each detail is distinctly 

 modeled, giving a rounder and more perfect image, and a 

 better rendering of color value. 



Appended is a list of photographs made during 1911: 



Prints for publication 1,069 



Prints sold ^'209 



Prints for albums and files 1,100 



3,378 



DEPARTMENT OF ENGINEERING 

 Georae ^I. Beerhnwer. Civil Kniiiiu-or. 



The most important work of our engineer has been in de- 

 signing and superintending the construction of the new Bear 

 Dens, the Eagle Aviary, the Shelter House for tropical birds of 

 prey,' the Pelican House, a new concrete bridge to be erected 

 north of Bronx Lake, and concrete steps for the new Bear Dens. 

 In addition to this he contributed materially to the plans for the 

 new Service Building; he has laid out and established grades for 

 new walks around all the new installations and the new service 

 yard, prepared the budget exhibit, and revised and brought down 

 to date the record maps of the Park. 



Along with duties and services such as those enumerated, 

 there is each year the usual accumulation of miscellaneous tasks 

 that are not chargeable to any important work, but at the same 

 time are imperatively necessary. Mr. Beerbower's presence in 

 the Park is of such daily importance to our general progress 

 that it is not always an easy matter to proceed without him 

 while he is on his annual vacation. For this reason, his vacation 

 usually is taken in several different periods, rather than in one 

 continuous absence for his full allotment of time. 



DEVELOPMENT OF THE PARK EAST OF THE BRONX RIVER 



The improvement of 180th Street along the extreme southern 

 boundary of the Park, in West Farms, coupled with the construc- 

 tion of the New York, Westchester & Boston R.R., skirting a por- 

 tion of our eastern boundary, has completely changed the aspect 

 of the southeastern corner of our grounds. 



