450 INDEX. 
Vermiculi of the frog - TUR Page 301% 
Leeuwenhoeck and the author have obferved the fame 
facts : - 2 308 
Linnaeus thinks vermiculi are inert particles of femen 314% 
M. de Bomare and Erneft Afch think they do not 
exift at all - . 317 
It requires acute vifion to fee them - 319 
M. de Buffon’s obfervations on femen - 320 
The animals he found there he calls organic molecules 324 
Needham thinks vermiculi do not exift in the body of 
the animal - - 327 
Vermiculi inhabit the fuid part of the femenonly 330 
It is extremely difficult to difcover the tail Vol. Il. .2 
Caufes of M. de Buffon’s errors - 4 
Infufion animalcula in putrid human femen 9 
In that of the horfe : 2 é rs ik 
‘Buffon afcribes to vermiculi the properties belonging 
~ to infafion animalcula - - B3 
Buffun’s organic molecules - 19 
His theory refts on a falfe hypothefis - 21 
Anfwers to his objections - 23 
Though vermiculi live longer as the atmofphere is 
warmer, they die fooneft in the warmeft days 
from putrefattion of the fermen By: 30 
Experiments with cold - =! TBS 
*Vermiculi become torpid . 34. 
10° below freezing is fatal . 36 
131° of heat is fatal to the moft vigorous - i SRO 
