The, HA S&S BOR Y & LLNS E.G, 
Nymphs, within their uncaft fkin. And this 
change is, therefore, almoft like that under- 
gone by the Vermicle, or Caterpillar, which is 
changed hidden within its web, and out of 
fight, as is properly and truly alledged by Mr, 
Ray. Vid.Catalog. Plant. circa Cantabr. naf- 
cent, P. 137. 
Since, therefore, the Worm either retains 
its ewn proper figure entirely, or deviates a 
little from it; ,but which ever of the two forms 
it puts on, yet always increafes into a Nymph 
within Hs uncaft fkin. Hencc it is, that I 
think it very reafonable to denominate this 
change bythe appofite appellation of a Nymph- 
Vermicle; for the Worm, having full retained 
His outer form, acquires the true nature of a 
Nyraph a its uncaft fkia. Before I further 
explain in what manner thefe worms, which 
either zetain their form or partly lofe it, are 
iéted internally, Ifhall offer fome general 
eason the eggs, {mall animals, Worms, 
wos an each of the four orders, and 
pave ail thofe proceedings of nature toge= 
ther. “This, indeed, will contribute greatly to 
the underflanding of this our fourth order, 
With refpect to the eggs of the Infects in 
the firft order, it muft be obferved, that the 
finall animals enclofed in them are like the 
Nymphs of the fourth order; and are fur- 
rounded or covered with their regular invefting 
fkin, in the fame manner as the Nymphs of 
that order are involved in the fkin of their 
Worms: fo that, by reafon of this integument, 
one can by no means diftinguifh the feveral 
parts. But the Infedts of the firft order, with- 
out any intermediate change, dire¢tly iffue per- 
fect out of the fhells of their eggs; nor are 
they cloathed like Worms firft, nor do they 
attain the full term of their increafe before 
they are hatched. And hence it is, that they 
are not afterwards changed into immoveable 
Nymphs, but only caft their laft fkin: and it 
is therefore for this reafon I call this change, 
at that time, a Nymph-Animal. 
Moreover, in regard to the eggs of the 
fecond order, it muft be obferved, that the 
Worms contained in them are likewife invefted 
with fuch a fkin as thofe of the firft order, 
and that there are likewife properly Nymphs 
in it; but they iffue from thence imperfect, in 
refpe& to all their limbs and parts, which af- 
terwards infenfibly increafe externally in their 
body: and, for this reafon, the Worm pre- 
cedes that change of them, which I call the 
Nymph-Animal. And hence this fecond order 
confiderably differs from the firft, in which the 
animal iffues perfect out of its ege. But 
thefe two orders agree alfo in this, that, in 
both of them, the animal increafes into a 
Nymph, whilft it is moving and walking 
about ; and this Nymph alfo is, without lofing 
its motion, at laft changed, and it cafts a {kin. 
The eggs of Infects of the third order are 
likewife invifible Nymphs, which are placed 
there without food: fo that, in this refpeQ, all 
thefe three {pecies of eggs agree. But the 
Worms, which, in this third order, creep out 
COME 
ad 
of the eggs; differ fiill more, in regard to the 
perfection of their parts, from the Worms of 
the fecond, than thofe of the fecond order do 
from'the {mall Animals of the firt: For all 
the limbs of the {mall Animals of the third 
order.do not grow out of the fkin; but, in a 
concealed manner, under the fin; for which 
reafon they are removed from our fight; until 
at length the creatures, having caft their kin, 
and changed their original form, prefent all 
thefe things to view externally. Befides, about 
this time, thefe Infects entirely lofe all motion; 
and then put on a-new the fame habit which 
they had before in the egg. This change I 
call the Nymph and Chryfalis, as being.a third 
{pecies, different from the firft and fecond or- 
der. However, all thefe three otders refemble 
each other in this, that the eggs of each are 
Nymphs at farft: and the fecond order yet fpe- 
cifically anfwers to the third in this, that, in 
each of them, the change into a Nymph is 
preceded by a Worm or Caterpillar. 
Laftly, the Worms of the fourth order are; 
in their eggs; likewife plainly Nymphs, whofe 
limbs and other parts are fo involved in the 
fhells of the egg, that they can by no means 
be diftinguifhed: wherefore thofe Worms thus 
far agree with the eggs of the firft, fecond; 
and third order. But thefe differ from the 
little creatures which iffue frotn the eggs of the 
firft order, in that they break, as imperfect 
Vermicles or Worms, out of their eggs. They 
likewife deviate from the Worms of the fecond 
order, in that their limbs do not grow exter- 
nally, but within their fkin: and, in this re- 
{pect, they again exactly anfwer to the Worms 
and Caterpillars of the third order. However; 
they differ alfo from thofe of the third order, 
in that they never prefent their limbs; in this 
ftate, to outward view; but are changed into 
Nymphs within their fkin, which they never 
caft off, but become immoveable therein. By 
this means they, in reality, affume a fecond 
time that form which they before had in theit 
eges; and therefore I call this change the 
Nymph-Vermiform, as being entirely different 
from that of the walking Nymphs in the firft 
and fecond order: though, with refpect to all 
the parts, it anfwers to the Nymph of the third 
order, only that it is invifible, It agrees like- 
wife with the fecond and third order, in that 
the Worm precedes the final change: whereas, 
on the contrary, there iffue out of the eges of 
the firft order of Infe&s creatures like theic 
parents, nor does the Worm-ftate precede their 
Nymphs. 
This matter being underftood, it is clearer 
than the light at noon, how far thofe eggs, 
fmall Animals, Worms, and Nymphs of the 
firft, fecond, third, and fourth orders agree; 
and in what they difagree one from another ; 
and alfo what is accidental, as it is called, in 
each, and what is effential to their feveral na= 
tures. Indeed, when thefe things are rightly 
obferved, there is nothing in our fourth order 
of tranfmutations which may not. be clearly | 
and eafily underftood ; fince the whole confitts 
i 
