39® Animalcules found in Water, 
the Surface of the Water, though it ofteif 
brought itfelf up till they were there, but 
becaufe in other In feds fuch like Infirm? 
ments of breathing have been obferved. 
From the eleventh Ring the Tail begins ; 
which is reprefented as it appears when the 
In-fed ufes it for fwimming, and the Whole 
of it is mod vifible. It does not however 
keep it in this Pofture when fwimming, but 
alternately extends it on each Side and brings 
it together again as Men do their Arms in 
fwimming. The Ends of each Branch of 
the Tail are fet round with Hairs, and there 
feems to be a Joint in each ; but the Draw¬ 
ing will give you a better Idea of it than any 
Words. —-1 mull not however omit faying 
fomething of its Inteftlnes. On each Side 
there is a fmajl Veffel running from the Head 
to the Tail, in which a conflant Circulation 
of a pellucid Fluid was difcernable : from 
the fecond Ring to the fourth a dark-colour¬ 
ed Veffel appeared, with the End next the 
Head feemingly open, or if covered, it was 
with a light-coloured circular Tegument. 
This Veffel terminated in a fine Canal that 
feemed to enter another Bag of a clear white 
Colour, at whole End was a Gut or Canal 
that w r ent quite down to the Tail. This Bag 
or Veffel I conjectured might be its Stomach. 
Above this Gut, and at the feventh Ring, be¬ 
gan another Veffel or Ligament, I can’t tell 
wbieh . reaching (after eroding itfelf twice) 
w 
