ae 
a 
24 The “BuOtO K Veh ON AaeU R IER Moe 
the oviducts refembles a fingle trunk, which is 
_ a hollow channel, ordained to receive the eggs 
in their defcent from the others. On each fide 
of the channel are five little tubes, ccccc, 
with their extremities clofed, Thefe open into 
the paffage, and. difcharge upon the eggs, in 
their courfe, a glutinous matter, which makes 
them ftick to the nettles upon which they are 
dropped. ‘The conftruction of thefe little re- 
ceptacles of the vifcous matter is extremely 
elegant: they confift.of various dilated tuber- 
cles, with lateral ramifications, which are like- 
wife dilated again, and ferve, in my opinion, 
to fecrete and elaborate the glutinous fubftance 
here fpoken of. On the other fide of thefe 
ducts there arifes, from the ovary, a much 
more flender tube, ¢, terminating in an oblong 
bag, e.. This contains, as it were, two dif- 
ferent fubftances. ‘The contents of the upper 
part, f, is yellowith; and, on endeavouring to 
extract it, the membrane, conftituting the bag, 
fhews itfelf to have fome ftrength. As for the 
yellowith fubftance, fticking to the infide, it 
looks very like the fat of the Butterfly. The. 
fubftance, enclofed in the lower portion of this 
bag, refembles a limpid humour, and appears 
as fuch through the tranfparent g membrane 
that forms the bag. The other end of the 
little tube, juft taken notice of, opens at its ex- 
tremity into the external parts of the ovary, 
or the vagina, 4, which has a little elegant 
horny bone, of a bright red colour, that extends 
from the womb to a confiderable height with- 
in the vagina, and has an opening, which I 
have marked with the letter z. 
All thefe parts of the ovary adhere fo firmly 
together, by means of the pulmonary tubes, 
Fig. 1v. aa, and fat, 645, that I have often 
loft my defire of endeavouring to difplay them, 
together with the hapes of being able to cfe@ 
it: but patience, in the end, got the better of 
thofe obftacles. 
Thefe little creatures are very readily killed, . 
by dipping them into fpirit of wine. They 
likewile die in a very (hort time, on putting 
them into a box containing Brazil-fnuf 
have obferved alfo, that other infects are fub- 
ject to the fame fate; though, at firft, it was by 
meer Chance that | difcovered it. 
I have thus briefly recounted what I have 
been able to difcover, concerning this little 
creature, in the {pace of a few weeks. But if 
I had been mafter of more leifure, and the 
autumn had not come upon me fo foon in the 
operations, I fhould be difpofed to mention, 
more at large, many other things worthy of 
admiration, which fell in my way; though { 
have not yet examined them with the accuracy 
they merit. Such, for example, as the true 
manner of the Butterfly’s wings acquiring their 
fize with fuch an amazing celerity; as well as 
the art by which the tubercles, bladders, and 
puftules may be imprinted on the wings; how 
the Caterpillar may be delayed and haftened in 
the courfe of its change; by what means all 
the colours, which appear through the fkin of 
the Aurelia, may, in that fhort time of their 
appearance, be fo firmly fixed as never after- 
wards to grow and fpread. I had befides 
propofed reprefenting, a great deal larger than 
life, all the fpots, lines, and colours of this 
little creature ; as likewife its hairs, feathers or 
{cales, and pulmonary tubes, the articulations 
of its legs, and many other myfterious works 
of nature obfervable in it; all which I have 
elfewhere promifed that I would fome time or 
another defcribe. 
The End of the wonderful Hiftory of the Diurnal or Day Butterfly. 
An Animal in an Animal; or the Butterfly hidden in the Caterpillar ; which is a 
third particular example, ferving as an additional illujtration to the fecond 
method of the third order or cla/s of natural tranfmutations. 
Tas. XXXVII. | 
Af ee by the particular experiment 
before advanced, it has been juftly fhewn 
what changes of the third order are peculiar 
to the firft and fecond fpecies or method of 
transformation ; I fhall here, by way of further 
ptoof defcribe and figure the manner in which 
I can find a Butterfly enclofed and hidden in a 
Caterpillar, and perfectly contained within its 
fkin. This I demonftrated, in 1688, to thofe 
eminent perfons Magalloti and Thevenot. 
But before I proceed to this, it is neceflary 
to obferve, that the Caterpillar, Chryfalis, and 
diurnal Butterfly, which I exhibit in thefe 
figures, are the fame {pecies with thofe which 
the diligent Goedaert has figured Tab. XI. 
Part x. And the often celebrated and learned 
Mr. Ray, in, his treatife on the plants 
owing about Cambridge, Page 134, has 
particularly defcribed a Caterpillar of this 
kind. 
Tab. XXXVII. N°.1. Texhibit the egg of 
the faid Butterfly in its natural fize. This egg, 
as I have defcribed in general before, is really 
the Caterpillar itfelf, enclofed in this condition, 
and invefted with a membranaceous cover, or 
integument. Indeed, this Caterpillar lies hid in 
its membrane, in the very fame manner as the 
Nymph or Chryfalis does in its integuments. I 
have before treated this matter atlarge; and the © 
whole will be again more accurately debated 
under the account of the fourth order: there- | 
fore ] fhall not here. exhibit a more ample ex- 
planation thereof. I am now only to demon- 
{trate clearly, that the Caterpillar is the Butter~ 
fly itfelf, and that this’ Butterfly lies encloied 
in the fkin of that Caterpillar, in the fame 
manner as the Caterpillar docs in the goa 
in 
