Lives and even Lives and grows in multiplies in rich fæces soils, manure, etc. Loses virulence slowly in light and air Pathogenic to swine, pigeons, sparrows, rabbits, white and house mice, white rats Guinea pigs, field mice and hens immune =Hog Cholera.= =McFadyean’s.= =Swine Plague.= Hen or pigeon has Hen or pigeon dies in slough where 48 hours, after inoculated, diarrhœa, drowsiness, drooping ruffled plumage, wings, sunken head, somnolence ruffled plumage, liquid stools, soft black comb and wattles, prostration Rabbits getting 0.1cc. Rabbits getting 0.5 to Rabbits getting 0.01cc. virulent culture 1cc. culture subcutem culture subcutem die subcutem die in 5 to had tumor like walnut in 16 to 20 hours, 7 days with enlarged but recovered with inflamed serosæ spleen and necrotic and lung; Petechiæ liver foci Weaker culture kills in Weak cultures kill in 4 10 to 20 days with to 10 days, with enlarged spleen, or inflamed serosæ and recovery ensues suppuration Guinea pigs die in 7 to Not pathogenic to Guinea pigs die in 1 to 12 days Guinea-pig 4 days Swine inoculated Swine inoculated have subcutem have often local lesions only, local lesions and only exceptionally bacilli, also in fatal lymph glands, only exceptionally fatal Ingestion of virulent Ingestion of 30cc. by Ingestion of virulent cultures by fasting pigs proved always cultures by pigs is pig causes bowel fatal usually harmless lesions and death Intravenous inoculation Intravenous inoculation in pig causes causes septicæmia and septicæmic lesions death in 1 or 2 days and death, or chronic diseases and typical bowel ulcers Intrapulmonary infection causes pleuro-pneumonia Swine erysipelas kills inoculated pigeon in 3 to 8 days, and rabbit in 4 to 8 days.