• ' •' i ' 3* 1 ■. . \ . 
To conclude, the ganglia , refpediog their ft rue - 
ture, may juftly be confidered as little brains, or 
germs of thofe nerves detached from- them, confift- 
ing, according to Window, of a mixture of cortical 
and nervous medullary fubftance, nourifhed with 
feveral fmall blood v effels *, in which various 
nervous filaments are colleded, and in them lole 
their parallel redilineal diredion, according to Baron 
Haller •j'*, who likewife obferves that ganglia fend 
off more and larger nerves then came to them ; fo 
that a new nervous organization, analogous to the 
brain, probably takes place in them. 
Refpeding their ules, ganglions are the origins 
of the nerves, fent to organs, moved involuntarily, 
and probably the caufe, or check, which hinders our 
volitions from extending to them. As different 
iburces of nervous power, ganglions are analogous 
to the brain in their office, though they derive their 
nervous filaments (to be new arranged in them), and 
confequently their power, ultimately from it. 
In a wor ganglions appear to limit the arbitrary 
power of the foul in the animal ceconomy. 
They put it out of our power, by a fingle volition, 
to flop the motions of our heart, and in one capri- 
cious infiant irrevocably to end our lives: and how- 
ever in the dark we may be, what fubordinate agents 
are fubftituted, fo uniformly to guide and dired, in- 
dependent of us, our vital and involuntary motions; 
we mull; at leaft clearly difcern, in the contrivance, 
the goodnefs, boundlefs, and unerring wifdom, no 
lefs than the power, of our adorable Creator 1 <c ad 
“ impellendum fatis, ad docer.dum parum.” 
* Win flow, Traite do la Telle, 629. f Halleri Elem. 
Phyf. T. iv. p. 20?. t Haller, ibid. 
S 2 XV. Co- 
