106 NEW YORK ZOOLOGICAL SOCIETY 
Valuable buildings, aviaries, dens, cages and fences, and miles 
of small water pipes that are becoming damaged by deteriora- 
tion, cannot wait. All serious deterioration must be stopped, 
promptly. 
The small water-pipes of the Park are of galvanized wrought 
iron, the life of which is only from 12 to 20 years, and miles 
of such pipes now are ready to go out of commission through 
internal corrosion and stoppage with rust. The prospects of 
digging up and relaying this great outfit is not pleasing to con- 
template. 
Respectfully submitted, 
WILLIAM T. HORNADAY, 
Director. 
