REPORT OF THE BUREAU OF ANIMAL INDUSTRY. 75 



Telops a large number of colonies of hog cholera bacteria. The 

 rabbit died on the eighth day. Spleen enlarged and friable, contains 

 many hog cholera bacteria. Slight coagulation-necrosis in liver, 

 which is infested with coccidia. Cultures from blood and spleen 

 pure. 



December 7. No. 38, small white female, died last night. Much 

 emaciated. Subcutaneous and subperitoneal tissue contain numer- 

 ous extravasations. Lymphatics in general with hemorrhagic cor- 

 tex. Spleen moderately congested. Lung tissue normal. Numer- 

 ous subpleural and epicardial hemorrhages. Kidneys with cortical 

 portion dotted with numerous punctiform extravasations. Mucosa 

 of small intestine contains numerous petecchise. One ulcer, one-half 

 inch across, in lower ileum. Extensive and deep ulceration 

 throughout whole length of large intestine. Some of the ulcers over 

 2 inches across; surface coal-black; the inflammation extending 

 through the intestinal walls to serosa, which is dotted with scattered 

 extravasations. A gelatine tube culture from spleen pulp contains 

 countless colonies in each needle track, consisting, as seen under the 

 microscope, of motile hog cholera bacteria. A liquid culture con- 

 tains also streptococci and butyric bacilli. 



No. 39, black and white female, post mortem changes under way. 

 No examination made beyond ascertaining that lungs are normal, 

 lymphatics with cortex infiltrated with blood, and spleen enlarged 

 and congested. 



December 8. No. 40, small black female, died this morning. Su- 

 perficial inguinals enlarged but pale. Moderate quantity of straw- 

 colored serum in abdominal cavity. Spleen enlarged, deeply con- 

 gested. In caecum and upper colon a large number of deep broad 

 ulcers; in some the inflammation extends through intestinal wall to 

 serosa. In lower colon, ulcers small and mucosa deeply congested. 

 Numerous hog cholera bacteria in spleen as shown by a gelatine cult- 

 ure. A liquid culture contains also butyric bacilli. 



No. 41, small black and white female, died yesterday. Post mor- 

 tem changes under way. Large quantity of blood-stained serum in 

 abdomen. Plastic peritonitis matting together the various organs- 

 spleen enlarged and congested. Numerous old ulcers in caecum and 

 colon, with adherent slough. Adhesive pleuritis, with large quan- 

 tity of blood-stained serum in thorax. Lungs normal, excepting 

 areas of collapse in ventral and cephalic lobes. A liquid culture 

 from spleen contains both hog cholera and butyric bacilli. A gel- 

 atine tube culture develops a large number of colonies in each needle 

 track. 



December 10. No. 42, small black and white male, died yesterday 

 morning. No discoloration of skin. Spleen very large, congested. 

 Lymphatics with cortex slightly reddened. Liver cirrhosed. A few 

 extravasations in pyramids of kidneys. Mucosa of caecum and 

 upper colon covered with ulcers, the adherent slough dirty yellowish. 

 Fully one-half the area of membrane thus involved, the remainder 

 is pale. Lungs normal. From the spleen, hog cholera as well as 

 butyric bacilli appeared in a beef -infusion culture. In a tube of 

 gelatine the colonies were very numerous. 



December 12. No. 43, small black and white male, died December 

 10. No discoloration of skin. Spleen very large, friable, gorged 

 with blood. Inguinals and lymphatics at lesser curvature of stomach 

 hemorraghic throughout. Those of mesentery and rneso-colon less 

 BO. A few petecchiae on surface of kidneys. Liver slightly cir- 



