498 REPORT OF THE COMMISSIONER OF AGRICULTURK. 



appearances : The lymiAatics of thorax and abdomen were much swol- 

 len and congested in both cortical and medullary regions; occliymoses 

 on auricles of heart ; lungs somewhat congested with numerous small 

 loci of a dark hepatization. Lung worms present. Both kidneys re- 

 sembled those of No. 114, the cortical portion eidarged, congested, and 

 on section dotted with closely-set deep-red points ; papilhe ])al(\ Spleen 

 swollen, filled with blood, friable. Along greater curvatuie of stomach 

 a small portion ot the mucosa was covered with small exti-avasatio'is. 

 The small and large intestines contained a chocolate-colored semi-liquid 

 mass evidently blood. On the valve a clot was firu)ly attached, but on 

 removal the mucosa was pale, no extravasation or ulceration iiresent. 



In this case the kiilneys and lungs seemed to have suffered most, if 

 we exclude the lymphatic system. 



Covtu'-glass preparations of the spleen showed the oval bacterium in 

 large numbers. In two liquid cultures of the spleen the motile bacte- 

 rium only was present. A gelatine culture of the spleen showed in each 

 needle track the innumerable minute colonies of the same bacterium. 



No. 140 had a teniperature ot 107J° F. December 10. Eyes intlamed. 

 It died December 18 quite unexpectedly, after having improved slightly 

 a few days previous. The autopsy revealed a very severe case of swine 

 plague. It diti'ered from tlie preceding case in the presence of extensive 

 ulcers of the large intestine, accompanietl by similar ulceration of the 

 ileum for about 2 feet from the ileo crecal valve. The lungs were con- 

 gested and hepatized anteriorly. The kidneys and lymphatic glands, 

 generally, were also involved. Cover- glass preparations of the spleen 

 contained the characteristic bacterium. A gelatine tube culture from 

 the same organ gave the characteristic minute colonies in large num- 

 bers. The check-])ig (No. 122) placed with this ])air on the day of in- 

 oculation died on the same day with No. 140. It had probably been in- 

 fected by No. 121, as it had succumbed very suddenly, ami the autopsy 

 revealed a very acute case of swine plague of the hemorrhagic type. 

 Lungs, intestines, and lymphatic glands were severely diseased; ulcers 

 had not yet formed. The spleen contained the oval bacterium in abun- 

 dance, as shown by cover-glass preparations and a culture in gelatine. 



With the same culture which had been injected into pigs Nos. 121 

 and 140, two fowls were inoculated on the same day, December 5. Each 

 received ^'"' of the culture liquid beneath the skin on each side of the 

 keel of the sternum. Both fowls remained under observation for two 

 weeks without revealing any sym]^toms of disease. 



On November 28 two pigs, Nos. U8 and 99, were fed with the intestines 

 of No. 97. No. 98 had been at the station nearly six weeks apparently 

 well. The temperature, at the time of feeding, 1021°, rose to 107|o E. 

 November 30, but fell to 104^ December 3. December 5 the animal 

 began to fail very rapidly, and died during the night. On examina- 

 tion no discoloration of the skin ; superficial inguinal glands enlarged, 

 slightly congested. A moderate quantity of straw-colored serum in ab- 

 dominal cavity. A few punctilbrm, bright red elevations on spleen. 

 Serum in pericardial cavity ; a few punctiform and patchy extravasa- 

 tions on each auricular ai)pendage; right heart distended with dark, 

 partially coagulated blood. Bronchial and mediastinal glands very 

 dark red throughout ; lung worms in both lungs. On the greater curva- 

 ture of the stomach, a large patch of the mucous membrane of a bright- 

 red color; glands of mesentery very much swollen, of a mottled red and 

 pale color, both on surface and on section. About 12 inches from the 

 ileo-caecal valve, the serosa of several coils of the small intestine dotted 

 with bright red points ; the mucosa of the corresponding coils reddened 



