

CONCLUDING EXAMINATION 209 
the Comptes Rendus for March 24 of that year, 
came to the conclusion that Bacillus spores could 
resist a rather higher temperature in neutral or 
slightly alkaline fluids than Pasteur had said. Yet 
he, after more than two years’ work at this and 
related subjects, said in regard to the most resistant 
spores he had met with—that of the hay-Bacillus, 
and another, ‘‘ Une température de 115° degrés les 
stérilise completement et tres rapidement”: mean- 
ing thereby, as his previous statements showed, that 
an exposure for a minute or so to that temperature 
invariably proved fatal to them. 
Then, again, these statements by Pasteur and 
Chamberland are made concerning “spores” of 
Bacilli, and still more of such spores which have 
undergone some amount of desiccation. None of 
them, however, in the least explain the appear- 
ance of Micrococci, of Streptococci, or of Torule, 
whose frequent existence within the experimental 
fluids has been mentioned in the previous and in 
the present chapter, as occurring in fluids which had 
been boiled, and even heated to various points from 
foo 07125 (257 FP): There: 1s, indeed, no 
existing evidence known to me to show that either 
of these three types of ferment organisms are able 
to resist, even for a few minutes, an exposure in 
Milds te 75° ©..( 107. F.). 
A brief reference must now be made to the experi- 
ments of Professor Tyndall, which did not profess to 
1 One exception to this statement has since been made known, to 
which reference will be found on p. 229, Note 1. 
O 
