56 
fig. vit. @; fo that the whole region of the 
ftomach 4, {mallc and great guts d, be parted 
from the liver. If the inteftines and the liver 
be inverted, fome of the parts before-men- 
tioned may be feen more diftindtly ; that is, 
the liver itfelf, fig. vi1. a, and the fmall guts 
in their natural fituation 6; then the inteftinum 
rectum, or ftraight gut c, and the ftomach d. 
And here we mutft obferve, that two very 
beautiful veflels run, fig. 1v. oo, along the 
ftomach and the gullet, or cefophagus, which 
difcharge themfelves into the upper part of 
the palate of the mouth, fig. 1. d. Thefe 
veffels are of the fame ftru€ture with that part 
of the epididymis in man, which lies upon 
the tefticles, and they are of the colour of an 
agate. On the infide they are hollow and con- 
tain a clear liquor, which they difcharge by 
two {mall apertures which open into the mouth. 
They are, therefore, plainly the falival duéts 
of the Snail, fuch as are likewife obferved in 
man and brutes, and are fituated either near 
the fame place, or a little lower, 
Ali se bey aati 
‘The BOOK of NATURE; or, 
Thefe two little veffels arife from two finall, 
clear, and fnowy parts, fig. 1v. pp, joined to- 
gether in the middle, and divided into various 
little lobes : you would eafily believe that they 
were nothing more than fat. A beautiful little 
veffel g runs through the whole furface, which 
brings them nourifhment and moifture, and, 
arifing out of a very high place under the 
verge, where the body begins to bend, comes 
to this part, and gives a great many branches 
to each of thefe {mall parts, Thefe little parts . 
are likewife, by the help of different vefiels, 
which feem to be fo many {mall and tender 
filaments, laterally conneéted with the ftomach. 
The falival ducts themfelves are, by certain fin- 
gular vefiels or ligaments, alfo connected with 
the ftomach. I firftindeed thought that this 
{mall part was the pancreas, but experience 
has taught me the contrary, and likewife that 
it is not fat; for it cannot be melted by fire, 
nor is it inflammable, if put on a bit of glafs 
and applied to a lighted candle. 
P VII. 
Of the genitals, penis, uterus, tefticles, ovary, and other parts fublervient 
| to generation. 
‘EC E fpermatic veffels.are placed not 
only in. the fore part of the neck, belly, 
and back of the Snail, but being twifted like 
vine tendrils, follow the convolutions or wind- 
ings of the body itfelf, and extend themfelves 
to the extreme end of the liver; fo that they 
may be juftly reckoned amongtt the moft re- 
markable parts of the body. Before they can 
be feen, the {kin muft be diffected, and fome of 
the membranes and mufcles removed ; and 
among the latter there isa very elegant mutcle, 
which, with many fibres, reaches obliquely from 
one fide of the body to the other, and fhews 
itfelf beautifully upon the ftomach, and thofe 
parts that ferve for generation. 
The maleand female organs of generation are 
both in the fame Snail, and the penis and uterus, 
being naturally united, grow firmly together ; 
fo that many of the parts are common to both. 
The {mall parts, from the ftructure of which 
it is known that they belong to the male or- 
gans, are the penis, Tab. V. fig. x. a, with 
its fharp, twifted, oblong appendage, which, 
at the extreme end, isround, in the form of a 
pear 4. To the female parts belong the 
uterus ccc and its ovary dd, which opens into 
the cavity of the uterus; that the little eggs 
may be increafed and covered with moifture 
therein, as may be feen very beautifully in the 
Ray-Fith ; nay, and in fome degree, in the 
uterus of Hens. But in other animals, as in 
Tortoifes, Lizards, and Camelions, there is 
found a greater agreement in this refpect, with 
the Snail, than I could obferve in fowls. 
As to the parts which have a mutual com- 
munication among themfelves, to thefe may be 
referred the tefticles: thefe are, as it were, a 
congeries or heap of oblong filaments ¢. Then 
the hidden appendages of the uterus f, and a 
certain common. duct between the penis and 
the uterus, Tab. V. fig. x. g: Afterwards 
there is an oblong vas deferens, which opens 
at the end by a fmall tube into the uterus 7, 
and has a little ballin the form of a pear at 
its extremity &  Laftly, there is a very beau- 
tiful curled veffel /, of the fame ftructure with 
the epididymis in man and quadrupedes, 
which being twifted in, like a little chain, dif- 
charges itfelf by a {mall tube m, into the be- 
ginning of the uterus and end of the ovary. . 
Having enumerated thefe things in general, 
I fhall now treat of each part in particular, 
and affign the reafon why I have called fome 
of them common to both organs, and others 
proper to one or the other. As to the penis a, 
it is nervous and of a mufcular texture, con- 
fifting, as it were, of three parts; the firft is 
a mufcular membrane, then the inward con- 
ftruction, wherein, as in a prepuce, the penis 
may move up and down; and laftly, the in- 
ternal porous membranes, which trufs up the 
penis on the infide, Hence it is, that if the 
penis be cut off in the act of coition, no more 
than the outward membrane which covered it, 
and out of which it ftretched itfelf, remains 
inthe body. It is all white, and is firm, and, 
as it moves up and down very eafily on the 
infide, fo it as eafily moves through the aper- 
ture 
