EXTRACTS FROM FOREIGN JOURNALS. 
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which are so readily infected by experimental methods ? The 
experiments I am about to relate may answer this question. 
First Series. —Three pigs, six to eight months old, were used. 
They had been kept for five months in the yards attached to the 
laboratory, and were in good health, large and fat. They were 
numbered 1, 2, and 3. 
On the 29th of September, 1879, No. 3 was placed apart, and 
Nos. 1 and 2 were fed with the entire lung of a tuberculous cow, 
obtained from the abattoir, and containing a great quantity of 
tubercles. It was devoured with apparent relish by both animals. 
Two days later, the yard being well washed, No. 3 was allowed 
to return to it. No. 2, a sow, was placed in a special lodge by 
•herself, as she was advanced in pregnancy, and eighteen days 
later was delivered of a litter of five little ones, of which she 
crushed four, on which no post-mortem was held. 
No. 1 was killed seventy-seven days after eating the tubercu¬ 
lous lung. During the last month he had lost much flesh, and 
the post-mortem revealed an advanced state of general tuberculi¬ 
zation. The ganglions were hypertrophied, the soft palate ulcer¬ 
ated and all the organs and serous membranes of the splanchnic 
cavities were covered with tubercules. 
No. 2, the sow, died in a very lean condition, one hundred 
and one days after the tuberculous meal. There was ulceration 
of the soft palate; a cretaceous condition of all the lymphatic 
glands; mammae were full of tubercules, and all the parenchyma¬ 
tous organs, abdominal and thoracic, were filled with calcareous 
tuberculer deposits. 
No. 3, the little one of the above sow, died the same day. He 
was tuberculous, but the lesions were less advanced. He showed, 
besides, extensive pulmonary hepatization. 
No. 4, the one which was first with Nos. 1 and 2, remained 
fat. He was killed after one hundred days of cohabitation. He 
showed a beginning of tuberculosis, limited to the maxillary and 
bronchial ganglions, with some granulations in the lung. In this 
case it seems certain that the transmission had taken place through 
the common feed rack. 
Second Series. —No. 5, On the 18th December, a young pig 
