THE BEGINNINGS OF LIFE. 475 



exposed to 27oF, and 293 F, and even in others 

 which have been heated to 295-3O7F for four hours. 

 Of these experiments none have, perhaps, yielded more 

 striking results than No. b. Here active Protamtzlxe 

 and ciliated Monads were taken from an hermetically 

 sealed flask which, eight weeks previously, had been 

 exposed to a temperature of 27o-275F; and these 

 very organisms were killed by the same temperature 

 (i4OF) as that which has been found to prove fatal to 

 all other Monads and Protamcebte. 



It seems scarcely possible to present experimental 

 evidence which could speak more plainly in favour of 

 the occurrence of Archebiosis. 



