The Sheep- Scab. 7 



United States; it is contradicted by Professor 

 Pasteur, an eminent French chemist, whose 

 views are endorsed by Professor Tyndall, the 

 distinguished and enthusiastic student of science. 

 The latter states that Professor Pasteur has car- 

 ried out his experiments with a thoroughness 

 quite apparent to the instructed scientific reader, 

 and accompanied by a logic as complete, and has 

 thus established the conviction that even in the 

 lower reaches of the scale of being, "life does not 

 appear without the operation of antecedent life." 

 The position of M. Pasteur, although often 

 assailed, has never been shaken; on the contrary, 

 it has been strengthened by practical researches 

 of the most momentous kind. 



It is granted, that the mismanagement of 

 sheep, lack of nourishment, exposure to cold and 

 wet, etc., flavor the increase and spread of the 

 disease, owing to their general debilitating influ- 

 ences; but that such conditions are the originat- 

 ing cause is stoutly denied by the latest scientific 

 authorities on the subject. Such being the case, 

 the question arises — 



