C482; 
Animalcles after they defcend into the Uterus^ and not 
in the Ovary 5 the former feems probable for this reafon, 
that at leaft a whole Clufter of Eggs in a Hen will be fecun- 
dated by one tread of the Cock 5 now this Fecundation 
feems to be in the Vitellary, and not in the Vterus^ as the 
Eggspaft along from day today, for it can hardly be 
fuppofed that the Animalcles fhoulcLfubfift fo long, be- 
ing fcattered loolely in the Uterus^ as to wait there for 
many days for the fecundation of the Eggs as they pafs 
along. The latter conje&ure has this to ftrengthen it, 
that the Animalcles are found to live a considerable 
time in the Vtertfs^ and that \i they (hould impregnate 
the Ova in the Ovary its (elf, the F&tps would encreafe fo 
faft, that the Ova could not pafs thro ihtTub£%)teri^ but 
would either burft the Ovary, or fall down into the Abdo- 
men from the Orifices of the Tuba 5 and that from hence 
proceed thofe extraordinary Conceptions in Abdomine 
extra Uterum. But, 4. Mr. Leemnhoeck. Numb. 147. of 
the Tranfafit. to weaken the third Confideration about 
the Conceptions being like unto an Ovum in the Womb, 
propofes a Parallel between thefe Animalcles and In* 
fe&s, and inftnuates that as the latter caft their Skins and 
appear of another (hape, fo the other which at firft 
feem like Tadpoles, may caft their outer Skin and then 
be round, and that this may be the occafioa of the 
round Figure of the Conception in the Womb- To 
this it may be replied, that according to Mr. Leemn- 
hoecks own fentiment, the Animalcles cannot come for- 
ward if they do not find the PunQum or proper 
place for their nourishment, to which it feems they muft 
have fome Adh#fion. Now the Conception in Viviparis 
is not faftned unto the Womb for many days, nor does 
adhere to any point of it, fo that it feems this roundifli 
Body is not the Animalcle thus chang'd after having 
caft an outer Skin, but is rather the Cicatrkula or little 
Egg, into which the Animalcle has cntred as its PttnSum 
or 
