Studies of plague, plague-like disease, and tuberculosis among rodents in California: 1, Study of virulence of cultures of Bacillus pestis of various sources and ages, 2, Virulence of Bacillus pestis of ground squirrel origin, 3, Immunity of wild rats, Mas norvegicus, to plague infection. 4, Susceptibility of ground squirrel, Ammospermophilus leucurus, Merriam, to plague, 5, Bacterium tularense cause of plague-like disease of rodents. 6, Note on susceptibility of ground squirrels. Citellus beechyi, Richardson, to tuberculosis; by George W. McCoy and Charles W. Chapin.

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