i 
ANIMAL REPRODUCTIONS. 389 
to produce numerous artificial kinds of montftro- 
fity, and that thefe may throw much light on 
the theory of animal reproductions. Certainly 
thefe wonderful operations are regulated by laws 
which depend on the nature and relation of va- 
rious organic wholes, and.it is the inveftigation 
of fuch laws that fhould chiefly occupy the 
philofophic naturalift. Some will be found 
more or lefs general, or fpecial; fome fubor- 
dinate to others, and all to a more compre- 
henfive law, that regulates the whole organic 
fyftem. Here nothing happens by chance ; all 
has been weighed, calculated, and combined, 
with refpect to poflible occurrences, and there is 
not the {malleft alimentary atom m this wonder- 
ful fyftem of organs, without its proportions, its 
motion, its place, and purpofe. Thus, what we 
denominate anomalous, or monftrous, is the ne- 
ceffary confequence of the admirable laws which 
govern the organic world, and of courle a con- 
firmation that fuch laws exiift. 
There is a’fifth refult to-be obferved. When 
enly a hand is amputated, what fucceeds it is. at 
firft much Jarger than what unfolds at the ex- 
tremity of a new arm. ‘This is evident by 
comparing fig. 10 and 12. In the germ prepar- 
ed for reproducing an arm and all its accompa- 
niments, the integrant parts of the hand fhould 
be {maller than in the germ, which contains no 
more than the reparatory elements of a hand; 
Bb 3 at 
