BA The 
ately under the fkin are feen alfo the mufcles 
appointed for moving the rings of the abdo- 
men. ‘The next thing that comes in fight is 
:the fat: this was not much changed here ; 
but, upon viewing it in a more adult Nymph, 
I found it fo wonderfully altered, diminifhed, 
and extenuated, that I thought I faw not fat, 
but a parcel of eggs: that is, its former ob- 
long, angulated, broad particles, were now 
become almoft round and globular, Tab. XLI. 
Fig.v.a@. Befides, alto, it loft fo much by the 
evaporation, and contracted itfelf in fuch a 
manner, that its diminution indeed was very 
confiderable. Hence it muft neceflarily follow, 
that the body, on account of the great plenty 
of the wafted fat, muft become more con- 
tracted, and poflefs a {maller {pace than before. 
The colour of this fat inclined to purple; but 
in the hinder part of the belly it was entirely 
green. ‘Thofe particles of far adhered to each 
other, and alfo to the pulmonary pipes, 44; 
fo that, when I touched them with a fine fharp- 
pointed knife, made like a lancet, they parted 
from each other with the leaft motion. In the 
Nymph that was very newly changed, the fat 
became more green. 
In the ftomach and inteftines alfo is ob- 
ferved a very great and wonderful change. 
This, however, is more or lefs obfervable, in 
proportion to the quantity of the Nymph’s 
fuperfluous fluids which have exhaled, and as 
the internal humours have been more or lefs 
diffipated. Hence it cannot, indeed, be de- 
{eribed how much the inteftines are, by reafon 
of their habit and figure, altered, dilated, or 
contraéted ; that is, according as the fuper- 
fluous moifture is more or lefs expelled by per- 
{piration. Among all the remarkable changes 
which I have obferved in thefe parts, I fhall 
exhibit that which, in my opinion, is the moft 
beautiful, and fhall begin a defcription of it 
from the gullet, Tab. XLI. Fig, vi./a.i7 The 
gullet is here obferved to be placed out of the 
horny parts of the head, 4, back, and con- 
tracted legs. It appears alfo how this gullet 
paffes ¢ through the aperture of the {pinal 
marrow, under the brain, and extends itfelf a 
unto the ftomach. ‘The fuperior or upper part 
of the ftomach is alfo found to be contracted, 
as it were, into five annular {mall ruge, or 
folds, through which the pulmonary tubes run 
very beautifully: and hence, on account of 
that contraction, it cannot be there feen how 
the ftomach is circumftanced on the infide. A 
little lower, it exhibits quite another face ; for 
it is divided by oblong grooves or furrows, 
which, in the figure, Ihave marked e with 
oints. But as the ftomach is there likewife 
inflated, and filled with a limpid humour, it is 
therefore obferved f to be like an open tranf- 
parent tube in this part; and it is the more 
confpicuous, as it is in colour fomewhat red. 
But it is neceffary to obferve, that the part of 
the ftomach, juft now described, eafily feparates 
from the next inteftine. The beginning of 
this {mall inteftine is very beautifully finuated, 
or bent, in like manner as the fuperior or upper 
BOOK of NATURE; 
or; 
part. of the ftomach, with fix foldings, or, as it 
were, corrugated convolutions, g. Afterwards, 
within this inteftine, is difcovered another 
fmaller inteftine, 4, which, being contained in 
its cavity, and curled with many windings, 
wonderfully twifted, defcends, zz, and again 
terminates underneath, in an open extremity. 
This little inteftine is of a bright yellow 
colour, and appears very plainly through the 
larger inteftine; becaufe the fluid, which is 
in that part of this inteftine that comprehends 
it, is limpid and perfpicuous. If that {mall 
inteftine be wounded, the little inteftine, con- 
tained in it, may be drawn out almoft twice as 
large as it appeared in the cavity of the larger. 
Then it 1s manifeft, that the yellow colour, 
wherewith its furface is diftinguifhed, proceeds 
from the yellow fluid contained in it. What 
the ufe of this little inteftine is, is. impoflible 
for me to explain: in this refpect, the works 
of God are impenetrable. Nor hall I, indeed, 
{cruple to affert here, that not even one truth, 
in refpect to the actions of the parts of animals, 
or even of the human body, is hitherto fully 
and clearly known to us. Indeed, thofe who 
think the contrary, acquiefce in imaginations, 
taking them for facts. From my own obferva- 
tions I fhall here add one thing, that is, that I 
have found this little inteftine in the gut of the 
Werm now preparing to undergo a change: 
and this is the reafon which induced me to at- 
tempt delineating the head of the Worm to the 
gullet, though I there reprefent the parts of 
the Nymph. I once found that inward little 
inteftine in an old) Nymph: it was there very 
brittle, and at the fame time fomewhat more 
red, and in a condition as if it began to waite 
away. And hence it likewife feems evident, 
why I have not afterwards found it in the Fly. 
Indeed, in thofe Flies, which are very juft ex- 
cluded, Ihave feen that this little inteftine has 
been abfolutely confumed. Wherefore one 
may probably conceive, that this little inteftine 
is the inward coat of the {mall inteftine in the 
Worm; and that this coat, not being caft out 
whole and entire, is by degrees confumed in 
the body. But thefe are only my own conjec- 
tures. I remember Ihave feen fuch little parts 
in Spiders too.. I likewife find, that Thomas 
Willis, that celebrated member of the Britith 
Society, obferved one inteftine in another in 
the Earth-Worms. And fince I here treat of 
the inteftines, I cannot help taking this oppor- 
tunity of complaining of the ingratitude of 
Cafparus Bartholinus, junior, towards me: for 
he, though I had, out of good-nature, fhewn 
him all the more uncommon preparations and 
fpecimens, which I had procured by the help 
of different anatomical contrivances; yet, in 
revenge that he did not fo far fucceed as to 
make me communicate the feveral methods to 
him, and being full of indignation, he has not 
{crupled to objet to my propofition, whereby 
I affirmed that I would fometime reftore the 
certainty of the office of fanguification to the 
liver. With what eyes has this lyncean author, 
who, in the front of his book, affumes the 
4 bombaft 
