238 | ANIMAL REPRODUCTIONS. 
in that place, and perpendicular to the flefhy 
cone formed by the head and neck. But the 
fame difficulties are found here, as in amputating 
half the head. Thus the motion of the animals 
prevented the cut from always being made in the 
place intended. It has often failed, either from 
defect by feparating lefs than the whole head, or 
from excefs, by feparating more. ‘Therefore, 
that proper accuracy might be obferved at every 
decapitation, 1 undertook the fame anatomical 
examinations as before: the fnails were preferv- 
ed in veffels, appropriated for the purpofe, as alfo 
an exact account of the parts they had loft by 
amputation. Four hundred and twenty three 
were decapitated. 
All thofe that, along with the head, had loft part 
of the neck, perifhed ; nor is this furprifing, con- 
fidering that a portion of the organs of genera- 
tion was likewife taken away. ‘Thefe organs 
originate within, in one fide of the neck, and 
protrude by an opening when the animal copu- 
lates. A number mutilated of the whole head 
perifhed ; but moft of them furvived this im- 
menfe wound, and many completely reproduc- 
ed the head. But as reproduction was attend- 
ed by different circumftances, in various indivi- 
duals, and all worthy of being known, it fhould 
be defcribed in a more particular manner. 
If a limb is cut off a water newt, the head or 
cai! from an earth worm, ‘the reproduction that 
enfues 
