The 
one to the other, as fmoothly as the palms and 
fingers of both hands can be grafped together : 
and by this means, not only their bodies, but 
their necks and heads, are raifed up and preffed 
clofe to each other. Then are feen the moft 
wonderful motions of their heads and eight 
horns, which furpafs all imagination; like 
Turtles, they are continually obferved to kifs 
each other, and to join lip to lip. The horns 
are affected with fuch various motions, that 
one can fcarce think, how they can _poffibly 
have fo many and fuch different mufcles, An- 
other circumftance that deferves notice is, that 
when they touch each other in the leaft with 
their horns, they immediately draw them 
In, or move them up or down again, or fide- 
ways; and thefe motions are often repeated. 
Thefe motions fometimes continue for three 
days, during which time the Snails turn in and 
out, and join together their genitals, fo that 
the penis and uterus, of each, are fometimes 
feen to hang entirely out of the body. But 
fince I cannot obferve that Snails have organs 
proper for feeing and difcovering things near 
and at hand, but only for remote objects; 
hence it is, that for want of this knowledge, 
I cannot obferve their coition but by chance. 
For though they very often fhoot their genitals, 
like an arrow out of a bow, yet the coition 
is {carce performed once in three times. This 
miftake feems to happen the oftener, becaufe 
every Snail carries its penis in the right fide of 
its neck: it muft therefore happen before they 
have turned their ref{peCtive heads crofs-wife 
towards each other, that they often attempt a 
coition unfuccefsfully. But they have leifure 
enough to repeat this bufinefs, fince they feel 
for a long time the incentives of their venery, 
though they have already gone through the 
bufinefs of coition ten or twelve times before. 
Nay, I have known fome of them indulge 
their venereal defires three weeks afterwards, 
and that they repeated them again in fix weeks 
after that. 
But when they affociate in coition, as they 
fhould do, each of them ftretches its penis, 
together with the orifice of the uterus, en- 
tirely out of the body, which is not done by 
erection only, as it isin quadrupedes, but prin- 
cipally by turning the inward parts out, as 
happens in the penis of Drakes. The firtt 
thing that opens in the Snail is the aperture, 
that lies in the neck between the upper and 
_ lower horns, Tab. V. fig, xvir. a; then the 
inward parts of generation are obferved to 
come out like two apertures, fig. xvitr. 53 fo 
that by this means the lower horn is puthed 
out of its place, Tab. V. fig. xvii1.&: after- 
wards thefe parts are very fuddenly thrown out 
of the body; yet fo as that the aperture of the 
uterus appears firft, fig. xix. d, and immedi- 
ately after the penis, the thicker part of which 
turns out firft, and afterwards the {harp part c. 
After this begins the coition, and the two 
lower horns are then fo far thruft out of their 
places, that they touch and prefs each other /, 
Fees) Ie OF RY. 
oly ENS iO. TS, xe} 
Thefe parts are afterwards remarkably fwelled 
by the, humours that flow towards them, {6 
that they refemble the clammy white of the 
boiled egg of a Lapwing, which, being mixed 
as it were witha tranfparent whitenefs, makes 
a very agreeable fight, refembling an agat. For 
the appendage of the penis, fig, x. 43, is ob- 
ferved to run fo far, and by the clearnefS of 
thofe parts, is fo evidently feen, that its motion 
is alfo obvious to the eye. 
After coition the parts before-mentioned may 
be {till perceived for a quarter of an hour 
hanging out of the body, that is until their 
{welling has fallen, and then it is furprifing to 
fee what wonderful motions the penis has. 
But if any one fhould in the mean time handle 
thefe parts, the Snail endeavours to draw them 
in by force, but however much it ftretches all 
its nerves, yet it cannot by any force bring 
them in, unlefs they firft become flaccid. A 
certain lympid moifture then diftils from thefe 
parts, which foon coagulates, and becomes te-~ 
nacious and firm in the air. The upper horns 
being always bent like a circle in the venereal 
act, are obferved not to move much, unlef 
that they are fometimes drawn in, and again 
ftretched out. After all is finithed, the little 
creature, having wantonly confumed the ftrength 
of life, becomes dull and heavy; and thence 
calmly retiring into its thell, refts quietly with- 
out much creeping, until the furious luft of 
generation gathers new ftrength, and effaces the 
memory of the uneafinefs fuffered after the for- 
mer coition. 
In a Snail, diffeCted a little time after the a@& 
of generation, I obferved that the penis was 
{maller, but the uterus a little more expanded 
and glutinous in its cavity. The ovary was 
manifeftly fwelled, and was longer, thicker, and 
larger, fo that it now feerned full of fperm like 
milk. Afterwards, however, I faw it much 
larger, and filled with more glutinous moitture. 
But in five weeks after coition, the ovary be- 
came yellow, and like real glue; yet the eggs 
were very foft like flime, and were {carce vi- 
fible. When I afterwards viewed the ovary in 
fuch a boiled Snail, every thing was callous, 
and as far as I could difcern, an infinite num- 
ber of little eggs prefented themfelves in both 
the Snails, which had copulated with each 
other. ‘The uterus itfelf was likewife at that 
time much more expanded, and became, as it 
were, glandulous ; fo that when thrown into 
the water, it fwelled very much. When the 
eggs were held a little while in the hand, the 
fingers ftuck together. ‘Therefore the ovary, 
the longer it paffed after the time of coition, 
became more tenacious, compact and yellow ; 
for all the eggs of the Snails are covered with 
very clammy membranes, and are, at length, 
perfected in the uterus. They cannot remain 
in the ovary, fince this is placed between the 
{piral part of the fhell, and throws its eggs into 
the cavity of the uterus. Some Snails lay their 
eges up and down on the ground, others tie 
them all together like a chain. I have feen a 
little 
