218 
in a fmall fibre manifelts to me his omnipo- 
tence and my weaknefs. For to this purpofe 
only, and that we may terminate our greateft 
 defires and ftrength in him and in his pleafure, 
all his works are offered to our contemplation. 
When I opened the margin or verge before- 
mentioned, and which is vifible in the hinder 
extremity of the thorax, it appears full only 
of pulmonary tubes and fat. 
The parts contained in the abdomen of the 
male are indeed as admirable as thofe which 
I have before explained as fituated in that 
part of the working Bee and of the female. 
But as no difference occurs here in regard to 
the ftomach, inteftines, and other parts, I 
fhall defcribe only the organs of generation in 
the male: for thus the difference between 
this male and the female, which has an ovary, 
and alfo between that and the working Bee, 
which is not furnifhed with either male or 
female organs, will be more evident. After 
this a fhort defcription of the fpinal marrow 
fhail conclude the whole of this difflection. 
Though this fpinal marrow be formed alike in 
each of the three kinds of Bees, yet I chufe 
rather to defcribe it particularly in the male 
than in the working Bee, becaufe the male 
has a larger body. 
The genital organs of the male are ex- 
tremely large and very eafily vifible ; for they 
poffefs the whole abdomen, nay, the abdo- 
men of the males feem to be larger than that 
of other Bees, that it may be capable of con- 
taining them. ‘This will be teftified by the 
moft ferene duke of Tufcany, Cofmus HI. 
who in the year 1668, in company with the 
illuftrious Mr. Thevenot, vouchfafed to view 
at my houfe, with great admiration at the 
fupreme Creator, thefe parts in the Bee, and 
gracioufly to honour my labours by this un- 
merited vifit. ‘The genitals of the male Bee, 
if we confider the {mallnefs of the whole 
infect, by far furpafs, with refpect to the quan- 
tity of fperm, thofe of all other animals what- 
foever. That feed is contained chiefly in the 
feminal veficles or bladders, as is the cafe in 
other infects, and in larger animals, as Moles, 
Hedge-hogs, and Rats, which, as they. are 
{welled with abundance of {perm, have greater 
plenty of it collected in thefe bladders than in 
their tefticles. I could almoft fay that it is 
fo in man likewife ; for when I compare the 
natrownefs of the filament or vefiel of the 
tefticle with the capacity of the feminal blad- 
ders, and atthe fame time confider the quan- 
tity of the feminal matter, generated in the 
veficles themfelves, that it is not transferred 
thither, according to the common opinion, out 
of the tefticles. But to proceed; we muft ac- 
curately obferve, that the parts which con- 
tribute to generation, and alfo to exclude or 
expel the {perm are the following: two 
tefticles, Tab. XXI. fig. 1. aa; two Vala. de- 
ferentia 54; thefe are diftended cc on each 
fide to a larger and more remarkable fize than 
the tefticles themfelves ; the two feminal blad- 
The- B-@ O K xvef WN APP UCR Bs ory 
ders or veficles dd, of a ftupendous bulk ; the 
root of the penis ee ; avery confiderable horny 
little part which is placed f fomewhat towards 
the anterior end in the thickeft part of the 
root of the penis; the penis itfelf, or the part 
analogous to it or like it g ; another little part 
of a bright red colour diftinguithed # by five 
divifions; and under it, on the other fide, 
another but larger pyramidal little part 2: 
laftly, there are the two pointed ££ yellow ap- 
pendages of the pudendum, with red ends, 
and invefted with a very thin skin, which 
contain this ruddy colour, and when wounded 
readily difcharges it. The little fgure mark- 
ed fig. 11.0 reprefents all the parts hitherto 
recited in their natural fize. . The tefticles, 
fig. 1.¢@are placed in the upper region of 
the abdomen, and fituated as it were at the 
back or loins; as is the cafe in Birds, Frogs, 
and other animals. They feem to me to 
confit of tubes, as in the water Beetle, the 
genitals of which I fhall hereafter delineate. 
Innumerable pulmonary tubes are likewife in- 
ferted into the tefticles, which greatly prevent 
the ftructure of the latter from being invefti- 
gated according to one’s wifhes. ‘Thefe are 
of a pale citron colour with a tinge of purple, 
which is likewife the cafe in Silkworms. The 
vafa deferentia 44 are very {mall, flender, and 
delicate in their {tructure, and appear whitith 
on account of the fperm which fhews itfelf 
through them: they are twifted like the ten- 
drils of a vine; nor do they appear to the ob- 
ferver until after the pulmonary tubes, which 
join together their knots and convolutions, are. 
gently and by degrees cut off with great care 
and very tedious labour. ‘Thefe pipes are fo 
ftrongly connected with the winding of the 
vafa deferentia, and with that part of them 
which becomes broader, and alfo with the 
tefticles themfelves, that they feem to con- 
ftitute as it were one body with all thefe parts. 
The vafa deferentia are here, as they are in 
man and brute animals, joined by one extre- 
mity to the tefticles: a little further examina- 
tion fhews very, plain, how thefe vafa defe- 
rentia are dilated, and refemble as well in re- 
{pect to their colour as the inferted pulmonary 
tubes, fecondary, or other tefticles. But be- 
ing more accurately examined, they difcover 
within a confiderable cavity, which the tefticles 
have not. ‘They are likewife of a glandular 
ftruéture, and are diftended with a feminal 
matter, which immediately flows out of them 
when wounded. Before thefe veflels are con- 
nected with the root of the penis and open. 
into its cavity, they are a fecond time con-~ 
tracted in a remarkable manner, and appear 
only fimple tubes, or {mall feminal veilels : 
they are at length inferted by their other 
extreme into the lower part of the fpermatic 
bladders. 1 think that in this dilatation ce of 
thefe veflels, a feminal matter is certainly 
fecreted; and in like manner I do not doubt 
but the fame happens in man, where the vafa 
deferentia are dilated into the form of bladders. 
Next 
