186 The BOOK of 
fat alfo very eafily in this diffection of the 
Nymph quitted its connecting membranes and 
the pulmonary tubes, and, by its friability, pre- 
fently hid the other parts from fight, for it 
divided and diffufed or fpread itfelf into innu- 
merable white parts of different bignefs. Be- 
tween this fat were likewife feen the pneu- 
matic veffels, not much changed from that 
appearance which they had before in the Worm, 
when it was about to caft its skin. 
The ftomach in this Nymph appeared ftill 
fomewhat long, for it had not wholly con- 
tracted or drawn up the length which it has in 
the Worm, into the pyriform figure which it 
wears in the Bee. All the reft of the vitcera 
of the body were already formed and confi- 
derably increafed. .The inteftines were very 
elegantly con{picuous, and of moderate ftrength, 
but they were filled with watery contents, nor 
did they yet contain that green fubftance, which 
is to be found in the inteftines of the more 
mature Nymphs, and thereof the green colour 
is evidently feen through the body and heart in 
the back. The fame thing obtains in calves 
whilft ftill in the cow’s belly, and the contents 
of the inteftines in them in like manner change 
colour.’ It is alfo very remarkable here, that 
fuch hairs are found intermixed with thofe ex- 
crements, as the mouth and body of the calf 
is covered with; and this argument moft evi- 
dently demonftrates, as I have obferved before, 
that thefe animals convey the food while in the 
uterus through the mouth; nay, and take in 
the hairs which they licked off the furface of 
their body, together with the fluid of the 
amnion. The vafa crocea, or yellow. veffels alfo 
may be very eafily diftinguifhed in this Nymph, 
and feparated eafier from the inteftine, than in 
the Bee arrived to its full maturity; for, be- 
fides the friability of the fat, the membranes 
are yet very tender, and the pulmonary tubes, 
to which thefe veffels are connected, are very 
weak. The internal parts of the fting alfo, 
which are not vifible on the outfide, may be 
now very plainly diftinguifhed. It was further 
admirable to fee in this diffection the acu-° 
leas or fting, which afterwards becomes fo 
fharp-pointed, hard and formidable for wound- 
ing, is ftill very foft and tender, like a thin 
membrane, and is likewife filled with an aque- 
ous humour, which naturally flows out of it. 
The poifon bag * of the fting was contracted, 
and its clofed tubes, by the help of which the 
poifon is fecreted and conveyed into the bag, 
may now alfo be difcerned. 
_ But as all the parts hitherto mentioned were 
extremely foft and yielding at the time of this 
diffeGtion, fo, onthe other hand, the produc- 
tions of the wind-pipe, or little pulmonary, 
tubes, prefented themfelves more diftin@ly to 
the view. The reafon of this, as I have be- 
fore obferved, is certainly that the fat and the 
* The poifon of the Bee feems to owe its mifchievous efficacy 
Let a Bee be provoked to ftrike its fling againft a plate of glafs, 
the glafs. This is to be placed under a double microfcope, and as the liquor evaporates the falts will concrete. 
oblong, pointed, clear cryftals, but the quantity of fluid is not enough to let them form diftindlly, 
Na AS PU) Rove oer, 
membranes which connect it, recede from 
thefe parts with the utmoft eafe: we lay open 
the Nymph from the bottom quite to the top 
with a {mall pair of fharp-pointed {ciffors, all 
the fat, the little membranes and the reft of 
the contents may be without any difficulty, in 
a bafon filled with water wafhed out fo tho- 
roughly, that ‘the pulmonary tubes alone, 
though they indeed, with refpe¢ to their larger 
branches, are not removed from their natural 
fituation, fhall remain behind in the skin. The 
fame experiment may alfo be made in another 
manner, viz. a fine glafs tube may be thruft 
into the body of the Nymph, and by the help 
of water injected through it, all the contents, 
except the tubes that convey the air, may be 
wafhed out of the body. This may likewife 
be done alfo in the Worm, when it is on the 
point of changing its skin, and then being 
blown up with air it may be dried and pre- 
ferved. The fame experiment may be made 
with the utmoft eafe in the melts of oxen; for 
if you wath off the outermoft fubftance of the 
melt through the vein, and then cut away with 
a fine knife the exterior coats from the melt: 
‘when dried, you will have a moft curious pre- 
paration. At this time we have a moft beau- 
tiful view of the pulmonary tubes, and their 
ramifications in the Nymph of the Bee; fo 
that they may with very little trouble be count- 
ed and diftinguifhed from one another; feven 
appearing plainly in the belly, and three in the 
breaft on each fide. The firft pair of thefe 
open with fair apertures on the outfide in the 
breaft near the neck; but before thefe two 
tubes afcend from thence towards the head, 
having firft taken a wider circuit, they join toge- 
ther, and then in two very diftinct branches, 
like the carotid arteries in man, they again af- 
cend towards the head, inferting themfelves in 
the brain, the eyes, the horns, and the teeth. 
The next two orifices are opened under the 
fhoulder-blades, and the laft under the wings. 
Some branches likewife, and thofe very. dif- 
cernible, run different ways out of the breaft 
towards the legs and wings; and thefe at the 
laft changing of the skin affift greatly in the 
unfolding of thefe parts, as I] have already. 
obferved. In the belly I could not fo accurately 
‘ diftinguith the orifices of the pulmonary tubes 
on the outfide, for there they feem to be in- 
ferted obliquely, like the urinary paffages in 
men and quadrupedes. But however, in the 
infide of the body their infertions are extremely 
obvious: this may be feen alfo even on the out- 
fide, if we free the Nymph from its coat, or 
firip off its skin with due skill, and then draw 
the air-pipes out of their orifices. As for the 
pofition of thefe pipes in the body, I have al- 
ready fpoken of it elfewhere, and. thall explain 
it farther in a fucceeding chapter. 
to certain pungent falts. It may be eafily feen to contain fuch. 
and there will be a drop of the poifon difcharged and left upon 
They form. 
ane; * 
