( I5S) 
their Ugne^ m the fame body ! have feefore iipUkn been 
able to diftinguifh the Sex, They are about the bigoefs 
of a Wheat ftraw^ or a Goofe quili their colour White i 
but being fo generally known to all> I{hallfor« 
bear a further defcription of their outward parts i Onely 
as I remember I did nor obferve thoff feet^ or afperities on 
the Annulii as in ih^ Earth Worm, hi both extremes they 
grow narrow. Their mouth is compob'd of three Lips 
as in our figure. So the Leech hath three Cartilaginous 
Teeth fee in a triangle, by which they make the wound- 
in the Skin in Suction. The Anus is a iranfverfe Oit a little 
before the extreme point of the TaiL 
In opening the body I found I cut thorow ii large 
Mufck under the Skin : Which Mufclein£'^zr/v^? Worms I 
find is j^irah as in a good meafure is their motioii likewife ; 
fo that by thi$ means, like th^Wcrm of ^naivger, they 
can the better bore their paflage into the Earth, Their 
reptile motion alfo may be explained by a Wire wound on 
aCylinder; which when flip'toffj andoneend extended 
and held faft, will bring the other nearer it. So the Earth 
#^<?m having (hot out or extended ii's body, (whichis 
with a wreathing) it takes hold by thofefmall/^^^ it hath, 
and fo contracts the hinder part of it's body» 
Likewife I obferved that dividing this part there iffued 
cut a copious/^for i which is naturally discharged by fome 
pores or fmall Vents in the Skin ; which in the Earth 
Worm is of great ufe, by rendering the furface of the body 
flippery, that fo it might th^ eafierly glide into the Earth. 
And inthefeother/^f/m/of the Intejiines this humor (as 
in Leeches) vtxdkts a covering to the body^ which is often 
caft ofF, and obierved as a Mucus ^ in the Stools of thofe 
troubled with them. 
Inthefe T/^m^j" of^7?i;?2^/bodies I never obferved thofe 
tranfverfe Diaphragms which are fo numerous in Earth 
Worms ^ and do interfed or rather fo deeply deprefs the 
Intejiine. But the Cavity chiefly feems tobefill'd with 
X 2 the 
