¥xXvuit A Short Explanation of th TABLES. 
the feed-bag. This part contains a limpid 
_feminal matter. . i ter 
g A fubftance furrounding the feminal matter, 
which refembles the white of an egg. 
oF ly Gee 
The ovary of a Female; and its parts. 
a The head of the female, feparated from the 
body. 
5 The gullet and ftomach. 
é The inteftines. : 
@ The exitus, of extremity of the inteftines. 
ée The ovary, confifting of twelve oviducts, 
fix at a fide, and ftill containing eggs of dif- 
ferent fizes, or in which there moreover 
_ appear eggs of different fizes. — 
f The vulva. 
g A bag, fhaped like a pear, opening into the 
vagina of the uteras. 
b A blind veffel, which in the infect appeared 
like a tranfparent lymphatic veffel. 
i Another particle, communicating with that 
laft mentioned, ahd containing a hard white 
fubftance. a 
kkk Pulmonary tubes, and veficles, diftri- 
buted in. great numbets amongft the fore- 
going parts. 
1 Aconfidetable branch of thefe tubes and ve- 
ficles; running at one end of the common 
_ ovary duct. 
m Some other fmaller branches belonging to 
the ftomach and inteftines. 
TAB. XXXI. 
Thé Hiftory of the Arborefcent Flea. 
: EF bas 1. 
The arborefcent Flea. | 
@ The aquatic aborefcent Flea, a little bigger 
than nature. | 
PIGS IL 
A fide view of the faid Infeét, taken with a 
microfcope. — 
a Oneof the eyes, fituated at one fide of the 
fnout. . 7 
6.6 Vts branching arms, iffuing from a fingle 
trunk. Each of thefe branches terminates 
in two branches, which are again divided 
into joints and lateral hairs. 
¢ The infeét’s fharp fnout, with which it fucks 
“its prey. 
a Its {caly fkin, with an opening in it, through 
which it can thruft.out its body and tail. 
e The tail, or extremity of the body, in which 
there appears-an inteftine through the trait 
parent furrounding parts; the feet are t6*be 
1 f 
feen in the fame manner on the for 
aa 
yoo Ok * 
Fart Ae 
the body, near the opening in din’ {2 » ce 
- now mentioned. 
Jf The extreme point of the rhomboibal fhéil, 
that covers the body. 
6 'Tranfparent eggs, which lie on the fore part 
of the infe@t, upon its’ pellucid body, with 
which they move backwards and forwards. 
so ee OS HG 
A more front view of the arborefcent Flea, with 
the opening in its fein. 
a An eye. 
c The fnout. 
d The flit, or opening in the fkin, reprefented 
in its natural condition, but fomewhat on 
the fore part, in order to exhibit the legis 
_ now projecting beyond it. 
ef The tail, and its hairs, a little more thrutt 
out from under the faid opening. 
& The fharp point, or extremity of the infect’s 
_ fealy fkin. 
6 That part of the body, in which the eggs lie. 
£6 The branching arms. 
A fhort Hiftory of the Gnat. 
Pel Gece LE 
Lhe Worm, which turns to a Gnat, of its natural 
fixe, viewed in different fituations. 
EoIG, yy, 
The fame Worm viewed with the microfcope, fo 
as as to fhew its thorax and belly, and in what. 
manner it can fufpend itfelf on the furface of 
the water, by means of the appendages of its 
tail. 
aa The eye. 66 The antenne, or horns. 
c The mouth, with its hairy parts, and arti- 
culated briftles. 
dd 'The thorax, with its hairs and divifions. 
On diffecting this Worm, feet are found laid 
up under the faid regular divifions. 
e é Eight divifions of the belly, with its briftly 
hairs. 
JS The tail. 
g An appendix to the tail, through which ap= 
pendix there appear two pulmonary tubes, 
through which the infect breathes. 
4 Black fpots, hairs, and little hollows on the 
extremity of the faid appendage. It is by 
means of thefe the Worm fufpends itfelf on 
the furface of the water 
z Bubbles of air, difcharged by the Worm 
from the appendage of its tail. 
kk The 
