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mild and did not reduce the rabbits to the same degree that it had in 
other places. It is interesting to know that in these areas of Goshen 
Hole and Laramie County, considerable rabbit hunting had been done. It 
is conjecture that hunting may be a factor in preventing the disease from

becoming so virulent. 
It is also true, in Wyoming, that the sage grouse disappeared 
simultaneously with the jack rabbit,probably from the same disease. 
Generally speaking it would seem that ground squirrels, prairie dogs, jack

rabbits, and grouse have been reduced in numbers during the same cyclic 
periods. The intensity of the diseose, of course, varied in the different

species of animals. It might, therefore, follow that where you attempt to

maintain a fairly constant level of desirable wildlife, such as grouse, it

would be necessary to prevent high peaks of rodent population, found on the

grouse habitat. 
Mr. Murray has gone into great detail as to his observations and 
conclusions along this line, but my observations have not been of such a

broad or detailed nature to be as positive in my statements. I would say,

however, general observations would back up your theory that to prevent high

peaks in numbers of animal life would create a healthier condition, and per-

haps eliminate severe disease cycles. 
Very truly yours, 
(SIGNED) ADOLPH S HAIAM 
Adolph S. Hamm, 
District Agent