2o6 



ZOOLOGICAL SOCIETY BULLETIN 



CONSTRUCTING PIPE GALLERIES. 



time, owing to the fact that most of the salt-water 

 tanks require heating during the winter months. 

 Early in the summer it will be possible to discon- 

 nect the heating appliances and change to the new 

 salt-water system. The storage reservoir itself 



was completed some time ago. During the winter 

 the large filters, to be used in connection with 

 stored sea-water, were installed and the rusty iron 

 pipes in the salt-water circulation were replaced 

 by lead-lined pipes, so that the Aquarium will soon 

 have its much-to-be-desired supply of pure, clear 

 and safe ocean-water. This means greater safety 

 for the present collections and the addition of many 

 species which could never be kept by the old 

 method, especially among the invertebrates. 



An important piece of work carried on during 

 the winter was the construction of pipe galleries 

 under the building. The contractor, Mr. Chas. 

 Wille, is now renewing a large amount of worn-out 

 piping, which has been buried in the earth ever 

 since the Aquarium was established, and which, 

 from its situation, could never be repaired. The 

 newly completed pipe galleries will contain piping 

 for both heating and water systems, and will render 

 them accessible at all times. 



Contracts will soon be made for the purpose of 

 improving the heating and ventilation, when the 

 building, as a whole, should be in fine condition 

 for years to come. 



Among the improvements made from the regular 

 maintenance fund, may be mentioned the installa- 

 tion of electric hghts over the exhibition tanks. 

 Artificial light has always been greatly needed 

 here on dark days. 



PHOTOGRAPH OF A LIVE FISH 

 Made in 1888 by C. H. Townsend. 



PHOTOGRAPHY AT THE AQUARIUM. 



)\ yi ANY of the visitors to the Aquarium request 

 permission to use their cameras, not realiz- 

 ing that the exposure of photographic plates in 

 such a building must be of long duration. In order 

 to secure the best results in exhibiting specimens in 

 any aquarium the interior of the building is some- 

 what darkened, light being admitted as much as 



possible through the exhibition tanks. The ap- 

 parent briUiancy of the tanks, even on the brightest 

 days, is misleading, and the making of instantaneous 

 photographs is quite impossible. Time e.xposures 

 on moving objects are, of course, worthless. 



The photographs of fishes living in the Aqua- 

 rium, which have appeared from time to time in 



