ZOOLOGICAL socii-:tv nULLKllX 



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Lion House, central service has been secured, 

 and direct communication between inside and 

 outside dens has also been obtained, by 

 means of a keepers' passage underneath the 

 slcci)in.ef dens, and an elevator shaft between 

 each pair of cages. The elevator shaft opens 

 on each. side into a sleeping den, the front 

 door of which opens into the interior cage, 

 and the rear door into the outside cage. To 

 introduce an animal, it is transferred from its 

 traveling cage into a transfer cage which 

 rests upon the platform of a car. which can be 



immediately liberates the animal in its ap- 

 pointed place. 



In the same manner, animals intended for 

 exhibition in the studio will be taken from 

 their cages, transferred, and brought back 

 again. By means of this arrangement, the 

 keepers can gain access, at any time, to any 

 sleeping den, and they can also shut an animal 

 into its sleeping den and gain safe access to 

 the main floor of its cage. All the doors of 

 the sleeping dens, and the partitions, are of 

 sheet steel, running on trolleys, and opening 



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raised or lowered by means of hand power 

 applied to very sim[)le machinery attached to 

 the car. 



This car runs on a track laid in the keepers' 

 passage through the entire length of the 

 building. The car stops under the elevator 

 shaft which communicates with the particular 

 cage to be reached. The cage is elevated 

 until its floor is on the same level as the 

 sleeping dens, when the opening of two doors 



and shutting by means of chains and pulleys 

 operated in the keepers' passage. 



THE STUDIO. 



I-'rom the inception of the planning of the 

 Lion House, now six years ago, it has been 

 the intention of the Zoological Society to 

 provide within this building a feature speci- 

 ally designed to facilitate the work of artists, 

 sculptors, and students doing serious work in 



