[ 449 ] 
brought about in a Manner pretty much alike. The 
animal and vegetable Semina are found to be alike 
the Rudiments of their future Offspring ; and both 
alike require only a proper Repofitory to preferve 
them from Injuries, and proper Juices to advance 
their Growth, and bring them toPerfedion. 
Glaffes (which the Moderns have fo much im- 
proved) are the Means whereby thefc Secrets in Na- 
ture are difcovered to us. The Eye, allifted by a good 
Microfcope, can diftinguifh plainly, in the Semen 
mafculinum of Animals, Myriads of Animalcules 
alive and vigorous, though fo exceedingly minute, 
that it is computed three thoufand Millions of them 
are not equal to a Grain of Sand, whofe Diameter 
is but the one hundredth Part of an Inch : And the 
fame Inftrument will inform us beyond all Doubt, 
that the Farina of Vegetables are nothing elfe but a 
Congeries of minute GranuUy whofe Shapes are 
eonftant and uniform as the Plants they are taken 
from. And as the Seeds of Plants are found by 
repeated Experiments to be unprolific, if the Farina 
be not permitted to fhed, it has been fuppofed, that 
all its Granula contain Seminal Riant s of their own 
Kind. 
The Growth of Animals and Vegetables feems to 
be nothing elfe but a gradual Unfolding and Expan- 
fion of their Veffels by a flow and progreflive Infi- 
nuation of fluids adapted to their Diameters,, until, 
being ftretched to the utmoft Bounds allotted, them 
by Providence at their Formation, they reach their 
State of Perfedion, or, in other Words, arrive at^ 
their full Growth. — -If this be- granted, the Confe- 
quence muft be, that all the Members of a perfedl 
Animal exiji really in every Animalcule of the Semen- 
anmalc. 
