1, Studies upon plague in ground squirrels, pt. 1, Pathology and bacteriology of plague-in ground squirrels, pt. 2, Notes on induced plague in ground squirrels, pt. 3, Immunity of certain squirrels to plague infection, pt. 4, Insect transmission in relation to plague among ground squirrels; 2, Plague-like disease of rodents: by George W. McCoy.