174 EXPERIMENT IN ANIMAL PRESERVATION 
lope, and the beaver must soon be extinct species, 
unless protected by some such means as Mr. Corbin 
has chosen to preserve them. The cariboo seems to 
have migrated beyond the extreme margin of human 
habitation. Though rapidly disappearing in the 
North-West, immense herds were seen last summer 
by explorers in the almost unknown “ barren lands,” 
fringing the Arctic Sea, and the mouths of the 
Coppermine and Fish rivers. The hunters employed 
in the capture of the various deer were fortunate 
enough to discover a “ moose yard ” in the deep 
snows of northern Canada, in which three hundred 
animals were collected on the area which they had 
stamped down and made safe for movement amidst 
the snow. Six of these were found isolated from the 
herd, and adroitly frightened into the deep snow, in 
which they were easily captured, the weight of the 
animals breaking through the crust of ice above, and 
leaving them helpless. These were sent with others 
a distance of two thousand miles by train in four 
days ; but neither they nor any of the deer would 
feed while in the train, and several of them died either 
in transit or after their arrival. Twenty deer were 
also killed in a railway collision. But more than two 
hundred animals were before long collected in what is 
to be their permanent home, and the wapiti alone 
have already doubled in number. 
The limits to be set to the increase of each species, 
should the experiment prove successful in all or most 
cases, will no doubt be matter for careful inquiry. 
