[ 623 ] 
min’d by them, if every fenftble Quality may be in- 
fluenc’d indiferiminately by either Parent? And if 
they cannot be alter’d, nor the vifible Species be 
determin’d exa&ly by them, in what docs their Ef* 
fence confift, or how can they be applied to that 
, very Ufe we leem to think them defigned for ? If 
they are placed in the Animalcule, or in the Egg, 
how are they tranfmitted? And if in the Animal- 
cule, why is the Procefs attended with fo vaft an 
Expence, fo great a Wafte of Millions of Entities, 
each containing within itfelf a Series of the moft 
perfed and moft wonderful Productions in Nature, 
when one only of thefe Millions of Millions is alone 
to take Place? How are thefe Animals generated? 
if in the common Way, not only the Procefs will be 
boundlefs, and thefe in their Seed have others, and 
fo on in an kiimenfe Series; but they can not then 
be unalterable, bccaufe they are fuppofed capable 
of being generated. Further, if they float in the 
Air, or lie hidden in Food, as fome have thought, 
how is it that the Stamina of one Species do 
not fometimes infmuate themfelves into a ftrange 
Parent, with all the Inconveniences and Abfurdi- 
ties of equivocal Generation ? Or if they are faid 
to be excluded by proper Strainers adapted for 
that very Purpofe in diftant Species ; at leaft they 
cannot be fo in thofe Kinds that are near a- kin: 
For if the fpermatic Animal, which is naturally pro- 
ductive of a Horfe in its own proper Matrix , is yet 
fo fitted to the Eggs of the Afs, that it can poflefs 
a Cellule there exclufive of every other, which ar- 
gues an exaCt. Coaptitude, certainly the fame Animal- 
cules, if contained either in Food, Air, or Water, 
common to both Horfe and Afs, might pafs the 
* * Strainers 
