30 DEPARTMENT OF AGBICULTUltE. 



Second, on Rosine, (No. 9,) on the 23d of November. 



Third, on Berthe, (No. 8,) on the 25th of November. 



Fourth, on Babet, (No. 7,) on the 3d of December. 



Fifth, on Clara, (No. 1.) on the 5th of December. 



Sixth, on Olga, (No. 6,) on the 7th of December. 



Seventh, on Martin, (No. 15,) on the 10th of December. 



Thus, twenty-four days after the admission of two sick cows, and eight days after 

 the introduction of a third sick animal, out of ten healthy animals nine presented the 

 abnormal indication of a peculiar cough. Only one cow (La Caille, No. 11) continued in 

 perfect health. 



After this first sign of sickness, the characteristic symptoms of pleuropneumonia 

 appeared in six cows, in the following order: 



First, Olga, (No. 6,) thirty-one days after first contact. 



Second, La Noire, (No. 16,) thirty-two days after first contact. 



Third, Clara, (No. 1,) thirty-five days after first contact. 



Fourth, Rosine, (No. 9,) thirty-five days after first contact. 



Fifth, Norrna, (No. 2,) thirty-seven days after first contact. 



Sixth, Coquette, (No. 3,) fifty-seven days after first contact. 



Of these six animals only one died, viz: Olga, (No. 6,) and her carcass was removed 

 to Alfort on the 6th of January, and there dissected by the members of the commission. 



Of the five other cows in the stable, the reporters say that symptoms of variable 

 intensity and duration appeared, and they all recovered. Certain lesions were, however, 

 recognized some time after by dissection. 



Of the three animals (Berthe, No. 8, Babet, No. 7, and Martin, No. 15) which began 

 to cough the first day after contact with the sick cows, the only symptom which lasted, 

 and is said to have continued for several months, was the cough. 



/Stable B. On the 25th of November, 1851, viz: nine days after the introduction in 

 stable B of the two sick cows, (Nos. 23 and 24,) the healthy cows began to cough, in the 

 following order: 



First, Suzon, (No. 13,) on the 26th of November. 



Second, La Garde, (No. 20,) on the 2d of December. 



Third, Marton, (No. 5,) on the 3d of December. 



Fourth, Kettley, (No. 17,) on the 7th of December. 



Fifth, Leduc, (No. 18,) on the 10th of December. 



Sixth, Nebula, (No. 4,) on the 18th of December. 



Seventh, LTomard, (No. 14,) on the 28th of December. 



So that, thirty-two days after the introduction of sick cows in stable B, out of ten 

 healthy animals seven presented the peculiar cough before mentioned. 



Three animals (Junon, No. 19, Bringc , No. 10, and Biche, No. 12) continued in per 

 fect health. 



Well-marked symptoms of pleuropneumonia presented themselves on four cows, in 

 the following order : 



First, La Garde, (No. 20,) sixteen days after first contact. 



Second, Leduc, (No. 18,) thirty days after first contact. 



Third, Marton, (No. 5,) thirty -five days after first contact. 



Fourth, Homard, (No. 14,) forty days after first contact. 



