Ane, 
The 
Next the vafa deferentia are placed the femi- 
nal veficles dd; thefe are wonderfully large, 
and are full of feminal matter; they are whiter 
than fnow, and are of a very fine texture. 
They feem, indeed, to be of a glandular con- 
ftruGion, only that the mufcular fibres alfo, by 
the help of which they are contracted to caft 
out the fperm, run through them; fuch a con- 
traction is common to all the other mufcular 
fibres, after they are drawn out of the body: 
{ have feen even thefe veficles, after being taken 
out of the body of the Bee, contract and 
wrinkle themfelves up by degrees. Here we 
fhould. well obferve, that near the beginning of 
the root of the penis two remarkable nerves 1 2 
are inferted in the fpermatic veflels, and which 
give many branches both to thefe veffels and 
to the root of the penis, contributing to the 
motion and titillation of thefe parts. That 
part of the {pinal marrow m, from which thefe 
nerves arife, is here delineated fomewhat late- 
tally. Near thefe nerves likewife, there appear 
two other little parts or ligaments 7//, by the 
intervention of which the genital parts are tied 
or faftened in their places in the abdomen, fo 
that they cannot go out of their proper fitua- 
tion without force: this, however, I would 
not have underfteod of the root of the penis, 
and fome other parts which are moveable, as 
fhall be thewn hereafter. 
Near the orifices of the feminal bladders and 
vafa deferentia, when the latter are more con- 
tracted, the root of the penis thows itfelf, 
Tab. XXI. fig. 1. e e; it is a confiderable long 
and crooked tube; it becomes the more dilated 
and diftended, the more it advances toward 
the outfide, until at length it expands itfelf into 
a globe of confiderable thicknefs, and being 
then fomewhat contracted again, it forms at 
laft a more confiderable oval tubercle or fwel- 
ling. On the infide in this dilatation of the 
root of the penis, there adheres a pelucid horny 
part, of a deep brown, but fomewhat ruddy 
colour, and fet with finall cavities f£ This 
part appears to be divided in the middle, and 
in that place is feen the limpid and clear colour 
of the penis. In the anterior or fore fide, but 
a little on one fide of the part juft now men- 
tioned, may be obferved two other horny, 
fhorter, and fmaller parts, which feemed to be 
joined together. ‘The ftructure of the root of 
the penis is nervous or cartilaginous, not yet 
hardened. Where this root is diftended with 
{perm, it is much whiter than where its fub- 
' ftance is more plainly feen, being in fuch parts 
limpid, and not fo white, but rather refembling 
glafs. This is the cafe likewife in the femi- 
nal bladders; where thefe, not yet {wollen 
with the feminal matter, prefent their proper 
_ fubftance to view. 
Under the little part juft now defcribed, and 
fomewhat on one fide of it, appears the penis g, 
or the part that feems moft analogous to a pe- 
nis; of this I fhall {peak more largely hereafter. 
On the other fide is feen & that the genital ve 
fels, which appear to be diftinguifhed into five 
MAS TORY 
ef NOSE OTT 8. 2i9 
divifions, and a little lower, and as it were on 
the other fide, there is feen another fimilar but 
undivided little part 2, which when difieCted is 
found to be thaggy, unequal, and as it were 
briftly. ‘The former little part which is divid- 
ed by five rings, appears alfo to be of the fame 
{tructure. ‘Thefe three hinder little parts, as 
well as the fubjacent and hollow appendages 22, 
appear wrinkled and contracted, like compref= 
fed, tender, and delicate membranes; the rea- 
fon of which will be foon fhewn. The fe- 
minal veficles therefore, as.has been obferved, 
and the vafa deferentia, as well in their begin- 
ning near the tefticles, as where they terminate 
after they have grown narrower, as alfo the 
root of the penis, every part of thefe is pellu- 
cid: wherefore, whenever they are difcharged 
of feed, they appear like white glafs, or like 
veal, or any other jelly: but when the {perm is 
feparated in the veficles or root of the penis, 
there is then a very fine appearance, as of glafly 
marble or agat, diftinguithed or variegated with 
white fpots. This is a {hort defcription of what 
belongs to the ftru€ture of thefe parts: many’ 
things more may be obferved, which I thall 
defer to another opportunity. If we confider 
the ufe of thefe parts in coition, and the man- 
ner the {perm is fecreted, thefe are indeed fo 
admirable that they almoft furpafs all that has 
been hitherto faid. For the little part which 
we have called the penis g, as alfo the other 
part with its five rings 4, and the clofed and 
pointed appendages £2, areall of them ereGed, 
and in the erection turn and invert themfelves 
in fuch a manner, that their internal furface is 
turned perfectly out: this is done in the fame 
manner as we take off our glove, or pull the 
skin off a Hare or other fuch animal, by turn- 
ing the infide out. Hence I am in doubt 
whether this fhould be called an eretion, rather 
than an inverfion, produced by the heat of the 
parts; all thefe parts are at the fame time alfo 
diftended with air. Indeed I do not remem- 
ber to have hitherto feen any thing -in nature 
wherewith I can compare this action, I am 
fenfible that Snails turn out their horns, and 
take them in nearly in the fame manner; but 
the air contributes nothing to this, the whole 
action is evidently performed by the help of 
confpicuous and elegantly conftru@ted mutcles ; 
but this does not happen in regard to the erec- 
tion in the Bee. If many Bees are kept toge- 
ther in a box, it frequently happens that thefe 
parts are obferved to turn themfelves out of 
their body in the manner juft mentioned: and 
on this occafion I have alfo found that the fame 
thing may be effected by art; that is, by tak- 
ing the body between the fingers, and then 
exprefiing or {queezing thefe parts out at the 
hinder part. 
When the male is about to difcharge the 
fperm, or to erect or rather evolve the penis, 
then, that I may now fpeak in general of the 
extuberance of the genitals, the clofed and 
pointed appendages are turned out. This is 
performed in thefe as well as the reft of the 
parts, 
