ZOOLOGICAL SOCIETY BULLETIN 
107 
VIEW OF THE ARTIFICIAL HABITAT OF THE PLATYPUS AS SEEN FROM ABOVE 
At the right is a labyrinthian substitute for the river bank with four dry burrows. At tlie left is shown 
the tank representing the river. The deep water is contained in the square section with the round metal 
pillar in the center. The elevated tank used as a bathroom is marked E. The two sand banks are 
marked S. The imitation river is connected with the substitute bank by a tunnel of sheet metal marked T. 
the zoo at Moore Park. They kept it for a few 
weeks and then, owing to the lack of proper food 
and heavy expenditure, they were obliged to 
liberate it in one of the ponds at Centennial 
Park close by the zoo. 
When I decided to continue Mr. Burrell’s 
experiments, first of all I secured the tank 
and incubator in which Mr. Burrell had kept 
his platypus. After examining them carefully, 
I thought that an improvement could be made 
in the incubator by nailing soft rubber gaskets 
smaller than the animal, around each hole in 
the partitions so that when he did go in he 
would be forced to squeeze through and there- 
TANIv AND INCUBATOR AS THEY ARRIVED FROM AUSTRALIA 
Comparing the size of the man with the apparatus will give an adequate idea of the immensity of the 
task accomplished by Mr. Joseph. A is the incubator and B the swimming tank. 
