A Short Explanation 
_ f One of the fting’s thanks put fomewhat more 
forward within the fheath than the other 
-fhank; but after fuch a manner, however, 
that the fting’s point {till remains entirely 
within the fheath. 
g The other fhank of the fting, lying higher: 
within the fheath. We may here fee by 
what means the fting, left in the wounds 
made by it, penetrates deeper and deeper. 
4 The hollow, cavity or channel of the fting’s 
fheath, when wideft. 
z The narroweft part of the faid hollow, ca- 
vity, or channel. 
k One of the fting’s thanks reprefented by it- 
felf, fo as to exhibit 
i] The cavity or channel within. which the 
edge of the fheath is received, fo as to afford 
the fhank a free motion. 
wm A fegment of the fhank cut off tranf{verfely, 
to give a better view of the fhank’s cavity or 
channel. 
n ‘The fame channel or cavity, as it appears in 
the other branch. 
o The extremity of the fhank’s channel or ca- 
vity. 
p Ten crooked heads or beards, with which 
each fhank is generally furnithed. 
997 q Other lefs confiderable hooks or beards. 
rrr Certain procefles of a fomewhat cartila- 
ginous fubftance, and ferving, inftead of 
mufcles, to move the fhanks. 
sss The fmooth unbearded fides of the 
fhanks, by which they join each other. 
¢¢¢ The hinder parts of the thanks, or the 
ligaments by which they are thruft out. 
vv Two places in which the fting appears as 
if there was a jointin it. But this appear- 
ance is entirely owing to the air, which 
makes it appear uneven: the poifon flicking 
to the fheath. 
x The poifon bag. 
y The tube which conveys the poifon of the 
bag. 
% The tube by which it difcharges its poifon. 
18 (Cane han 
The potfon bag of the Wafp, and the Hornet, with 
the other parts belonging to it. 
a The poifon bag 
6 The tube by which the faid bag theds its 
poifon. j 
cc The two tubes inferted into the hinder part 
of the poifon bag, into which they difcharge 
the poifon. In the Bee there is but one tube 
to anfwer this purpofe. 
ddd Swellings here and there in the laft men- 
tioned tubes. - 
ee The ends of the tubes fomewhat thicker 
than any other part. 
1 a ee 
Reprefenting the manner, in which the Bee's 
poifon may be extracted or gathered. 
@ A filender glafs tube ferving to receive the 
poifon. , 
aad 
of th TABLES. xi 
6 The point of the fting placed within the 
tube, and pouring into it the poifon fqueezed 
by the fingers out of the poifon-bag. 
TA B. XIX, 
FeliGs ly 
The Bee's heart, with the parts belonging to it. 
aa Part of the heart feated in the upper region 
of the abdomen. 
666 Pulmonaty tubes running towards each 
fide of the heart, in which they at laft ter- 
minate. 
ccececc Certain thin membranes, that ferve 
to keep the fat in its proper place. 
dd The fat as it appears through the faid 
membranes, which are tran{parent. 
eee The ovary, as it likewife appears through 
the faid membranes. . 
SSfAFFF The mutcular fibres broken off from 
the abdominal rings, which they ferve to 
govern. 
123456 The fix abdominal rings under 
which the heart is placed, as it were in the 
infect’s back. 
: Dale Gs ott, 
The ovary of the Bee, of the fize and form it ap- 
pears to the naked eye. 
FIG. III. 
The fame ovary, reprefented as it appears through 
the microfcope. 
N. B. This double ovary is compofed of 
parts extracted from two different female 
Bees, viz. The part a from a full-grown 
impregnated Bee; and the part c from 
another Bee lefs perfeét, and not as yet 
impregnated. This I did to avoid the 
neceflity of two figures, where I thought 
one might be made to anfwer. 
a Part of an ovary extracted from an impreg= 
nated. Bee, furnifhed with an infinite num- 
ber of ducts, that contain eggs of different 
fizes. 
b 6 The coalition of the oviduéts of each fide, 
where they difcharge their eggs into a com- 
mon channel or duét for all the eggs of that 
fide. 
¢ Part of an ovary extracted from a female un- 
impregnated Bee. The eggs of this part 
differ greatly from thofe of the other part a. 
d A dilatation of the pulmonary veficle, which 
diftributes its ramifications, and an infinite 
number of air-tubes through every part of 
the ovary, itsducts, and even the eggs them-~ 
felves. 
ee ‘The upper parts of the ovidudts of an im- 
pregnated Bee, where they unite, and the 
ene parts of the ovary bend towards-each 
“other. . 
F 
