




— 2 
. . to have had all their powers of growth and multipli- 
rit, 
cid 1 

EXAMINATION OF PASTEUR’S DOCTRINES 127 
fe 
cation stopped) by a temperature of 70 C., and that 
this occurred just as certainly in neutral and slightly 
alkaline as in acid solutions, as shown in Chapter ix., 
it seems probable that the death-point for desiccated 
spores of these organisms might also not differ in 
nourishing fluids having these different reactions. 
Still this point has not been proved ; so that, in the 
present state of knowledge, it must be admitted that, 
so far, an absolutely complete answer has not been 
given to what were unquestionably mere assump- 
tions on the part of M. Pasteur. 
