BACTERIA AND THEIR GERMS. 83 
Association for the Advancement of Science 
recorded experiments in his Inaugural Address 
which were obviously based upon this belief as 
a starting-point; and subsequently, in one of the 
Sectional Meetings, after referring to some of my 
experiments, and to the fact that all unmistakeably 
vital movements ceased after Bacteria had been 
boiled, Professor Huxley added* :—“I cannot be 
certain about other persons, but I am of opinion 
that observers who have supposed that they have 
found Bacteria surviving after boiling have made 7 
the mistake which I should have done at one time, | 
and, in fact, have confused the Brownian movements . 
with zrue living movements.” Some eminent 
biologists do not now (in reference to the experi- 
ments cited in my last communication) suggest 
that the organisms found in the infusions were 
dead and had been there before the fluids were 
boiled: they express doubts concerning that which 
seems formerly to have been regarded as estab- 
lished, and now wish for evidence to show that 
the germs of Bacteria and Vibriones are killed in a 
boiling infusion of hay or turnip, as they have been 
proved to be in ‘ Pasteur’s Solution’ and in solutions 
containing ammonic tartrate and sodic phosphate. 
With the view of removing this last source of 
» See Report in Quart. Journ. of Microscop. Science, Oct. 1870. 
G2 
