OF THE OX. 321 



Ecole Veterinaire d'Alfort, the favourable op- 

 portunity and the essential conditions of which 

 we had so long been in quest. 



Grieved at our helplessness to stay the 

 ravages of pulmonary consumption, I formed 

 one day the resolution to study that wasteful 

 complaint in animals in order to discover, or at 

 least to look for, the required remedy. With 

 that view, I confined in a dark, cold, and damp 

 cellar a number of animals to practise on : 

 birds of different species, rabbits, a monkey, a 

 dog, &c. To these animals I dealt out a defi- 

 cient quantity of food. The monkey, as might 

 have been expected, was the first to be affected, 

 since in our climates they all die of consump- 

 tion. Next, and for the same reason, it was 

 the parrot's turn ; then the chickens and ducks 

 died ; after them the rabbits ; in fine, at the 

 end of fourteen months, the dog alone survived. 

 All the rest had sunk under consumption, and 

 exhibited tubercles in different organs in the 

 lungs or mesentery. 



It was then necessary to have the counter- 

 proof : to place a second set of animals in the 

 same conditions, to produce the disease again, 

 and attempt its cure. But the first experiment 



Y 



