
OTHER NEW EXPERIMENTS 169 
trésporté a croire que cette production constitue un 
ferment organisé, et quil n’y a jamais transformation 
de l’urée en carbonate d’ammoniaque, sans la preé- 
sence et la développement de ce petit végétal.” 
Still, he said, his experiments on the subject were 
not quite finished, so that “je dois mettre quelque 
réserve dans mon opinion.” As I have shown, 
however, in agprevious chapter (p. 136), the little 
chaplet-like organism never appears in any experi- 
ments with urine and potash; the urine under these 
conditions ferments with the development of myriads 
of short or long Bacilli. 
Again, on the same page, M. Pasteur speaking 
of his experiments in which acid urine had been 
boiled for a few minutes in a vessel to which calcined 
air was admitted before the vessel was sealed, said 
that if it were subsequently exposed in a stove to 
the influence of a temperature of 25° to 30° C. (77 -- 
86 F.), “il peut y séjourner indéfiniment, sans 
éprouvé d’autre altération qu’une oxydation lente de 
la matiere albumineuse de l’urine . . . la limpidité 
de l'urine reste parfaite, méme apres dix-huit mois, 
et il n’y apparait pas la plus petite, production ani- 
male ou végétale: ele conserve egalement son acrdité 
et son odeur premiere.” This latter statement, which 
I have italicised, is absolutely erroneous, as I shall 
presently show. 
Pasteur subsequently became acquainted with the 
fact which I have quoted from Fownes, and in one 
of his replies to me (that of January 8), he said ina 
note: “It is not useless to say here that, contrary 
to what is generally admitted, urea in aqueous solu- 
