328 



BUILDINGS, SANITATION, AND DISEASES' 



Courtesy Tennessee Ijejinrtniint of A;^'rii_i]lture. 



Fig. 90- — Ulcers (large intestine), chronic form. 



Courtesy Tennessc-e De| lartuicnt of A^TiciIture. 



Fig. 91. — "Button ulcera" (large inteatine), chronic form.' 



Courtesy T^.^^nL■ssee Department of AgricLiltiire. 



Fig. 02. — Group of cholera pigs. 



