120 M. Floureiis on the effects of 



There remained six chickens out of the twenty-three, which 

 gave me the most important results. 



I left them at first in the common yard till they gave evi- 

 dent indications of phthisis more or less advanced. I then took 

 tnem to the mild and constant temperature where I had 

 placed the six already mentioned. Two of them, which certainly 

 would have died in the first or second day afterwards if I had 

 left them in the cold, after having made a slight recovery, 

 perished, one at the end of five, and the other at the end of 

 nine days. I found their lungs in a state of complete suppu- 

 ration and inflammation. 



The other four resumed by degrees their vivacity and strength ; 

 they recovered completely; and in April 1827, when I gave 

 them all their liberty, they were as well as those which had 

 never quitted the warm temperature. 



It remained only to be seen what was the actual state of the 

 lungs of these four chickens, and what was the state through 

 which they had passed during the evident signs of phthisis which 

 they had exhibited. 



I found in the lungs of them all traces of former changes, 

 more or less deep, but still cured. 



One of these healed lungs preserved in spirits I have shown 

 to the Academy, and one of the lobes presents only sunk de- 

 pressed vesicles, cicatrized inflammations, and extinct suppura- 

 tions, — a testimony no less authentic than consoling of the com- 

 plete cure of a disease which, from the number of victims which 

 it carries off", renews every day the sorrows of domestic life. 



This last experiment shows clearly what is the kind of in- 

 fluence which warm climate exercises over pulmonary con- 

 sumption ; and it is in promoting the cicatrization of the lungs 

 aff'ected by the cold of our climate, that the genial tempera- 

 tures of the South produce the good effect which physicians 

 have long observed. 



From these observations it will be seen how far the influence 

 of temperature, or more particularly that of cold, extends both 

 over the animal economy in general, and over the respiratory 

 organs in particular. 



We see also how much advantage may be derived in the 



