Ill 



TUBERCLE 



IDE FORE Laennec, tubercle had been taken for 

 a degenerative change of the tissues, much 

 like other forms of degeneration. It was Laennec 

 who brought men to see that it is a disease of itself, 

 different from anything else ; and this great dis- 

 covery of the specific nature of tubercle, and his 

 invention of the stethoscope, place him almost level 

 with Harvey. He founded the facts of tubercle, 

 and on that foundation Villemin built. In 1865, 

 Villemin communicated to the Academie des 

 Sciences his discovery that tubercle is an infective 

 disease ; that he had produced it in rabbits, by 

 inoculating them with tuberculous matter. En 

 voici les preuves, he said. He appealed to these 

 inoculations to prove his teaching : — 



La tuber atlose est une affection spdcifique. 

 Sa cause reside dans tin agent inoculable. 

 L'inoculatioit se fait tres-bien de I'homme au lapin. 

 La tubermlose appartient done a la classe des 

 maladies virulentes. 



It was no new thing to say, or to guess, that 



no 



