104 
at length arrived to perfection, by a flow in- 
creafe. ‘The two fore feet are feen £4 full 
lying under the fkin; but the two hinder legs 
project beyond the {kin, //, though they are, in 
reality, ftill invefted with the fkin of the Tad- 
pole, which they afterwards are to caft off. 
This {kin is dilated and ftretched out with the 
growing feet, as is likewife the cafe in injects , 
of the fecond and third order. Hence it is, 
that I really very properly give the young Frog, 
in this form, the appellation of the Frog’s 
Nymph, which it feems may be likewife re- 
ferred to the fecond or third order. But as the 
young Frog, while it is under this form of a 
Nymph, ftill feeks its food, and moves about, 
it therefore approaches much nearer to the in- 
fects of the fecond order, than to thofe of the 
third; for this reafon, it likewife cafts its {kin 
in moving and f{wimming, and brings to view 
its fore legs, then refembling thofe of a perfect 
Frog; though it ftill, for a long time, keeps its 
tail, which afterwards fhrivels up by degrees, 
and, finally, dries away. 
N°. VI. I thow how the Frog, having gra- 
dually gone through the forms of an Egg, 
Worm, and Nymph, at length has attained its 
Man himfelf compared we 
i hg is evident from comparing the Frogs, as 
we have juft now done, with the infect tribe, 
how the fanguiferous animals, or fuch as have 
red blood in their veffels, are, in repect to their 
changes, like thefe fmaller creatures. Indeed 
this likenefs proceeds fo far, that it extends under 
many names, even to man himfelf: for all the 
works of God feem to proclaim, only one foun- 
dation of propagation and increafe. 
I firft obferve, that it is clearer than the light 
at noon, that man is, like infects, produced from 
a vifible egg, which, after being impregnated, is 
brought forth: that is, it is by a local motion 
conveyed out of the ovary through a tube into 
the uterus, which is the place wherein man, 
that rational animal, finds his firft nourifhment, 
and reprefents, as it were, 2 Vermicle or Worm, 
or, to ufe Harvey’s words, a Maggot lying in 
the egg. 
Secondly, The membranes which then inveft 
the Infant-Man, are there likewife dilated, in or- 
der to receive an aqueous humour conveyed from 
without to the Man-Vermicle. Therefore, the 
human egg likewife refembles the eggs of infects, 
in that the latter dilate, nay, break open their 
coats, in order to get elfewhere the nourifhment 
which they do not find in their egg. 
Thirdly, We obferve, that the Vermicle or 
Maggot of Man, as well’as the Vermicles or 
Worms of other infeéts, have not completely 
perfect limbs ; therefore it is increafed in fize, 
even from the beginning, till its limbs project 
at length out of the fkin, and its umbilical cord 
is divided into two arteries and one vein, which 
take root in the internal furface of the uterus, and 
conftitute the placenta, or after-birth. 
e 
The ‘B.O°O' Ke obo Ne AVRIUR EB Por. 
perfe@ maturity, and appears fit for propa- 
gating its {pecies, in the fame manner as. in- 
fects and vegetables, and thus is able to con- 
tinue its generation. It muft be obferved here, 
that the Frog is not abfolutely perfect, or fit 
for generation, immediately after its metamor- 
hofis.. By no means; for, unlefs lam greatly 
miftaken, this creature does not acquire that 
degree of perfection until two or three years. 
The Frog, therefore, differs in this double re- 
fpect from the fanguiferous animals, and from 
infects; moft of which are perfect in one or two 
hours after their birth, or after their metamor:. 
phofis from Nymphs, and then likewife imme- 
diately obtain their full fize and maturity, and 
at the fame time become fit for the office of 
generation. ‘The Frog which I here exprefs, 
of full age, is the male; as one may very cer- 
tainly know from thofe two veficlés, Tab. 
XLVI. N°. vi. wm, which are fituated behind 
its eyes, and are never to be found in the fe- 
male. ‘There is moreover another certain fign, 
whereby the male may be diftinguifhed from 
the female; but that I fhall defcribe and deli- 
neate in a particular hiftory, which I fhall fub- 
join to this general account. ; ; 
infects, and with the Frog. 
Fourthly, It is very clearly obferved, that thefe 
parts of the Man-Vermicle. grow by degrees into 
a head, thorax, belly, and limbs. In the head, 
the coloured eyes are very diftinctly feen through 
the fkin ; but they are more confpicuous in the 
beginning thanafterwards, when thefkin becomes 
thicker; for then they can be no longer feen. 
But it is indeed very admirable to obferve, how 
the limbs fprout about the fhoulder-blades, and 
at the lower parts of the body: for, in the begin- 
ning, they refemble the {mall cups of flowers | 
juft budding, or the bags and cafes of the parts 
of infe@ts; the former enclofing the flowers, and 
the latter the wings; and then, by degrees, jutt 
as the legs of Frogs, they grow out of the body, 
and are divided into joints. 
Fifthly, We obferve further, that all the limbs 
of the Man-Vermicle, in time, acquire their due 
perfection, and are ftrengthened to fuch a degree, 
as to be able to break out of the uterus, and to 
difengage themfelves from all their integuments. . 
And hence this firft ftate of man likewife re- 
fembles an infect, in that it hath, under the 
form of a Chryfalis or Nymph, acquired all the 
ftrength requifite to change its skin, and appear 
like a perfect creature. Man therefore, as on 
the point of his birth he does, like infects, throw 
off and lofe feveral very confiderable parts, may 
indeed be defervedly called, at that time, a 
Nymph ; fince he then isto caft off his umbeli- 
cal veffels and placenta, together with the skin 
and the amnion. 
Sixthly, This tender and new-born creature 
leaves the uterus, in the fame manner as the 
Ephemerus and Libella, that have caft their skin, 
and leads a new life, and has a different nourifh- 
ment. 
