( 5 <7 ) 
end of the Canal or Sheath, which opens at a Hole a 
little before the Larynx ; (as will be (hewn in the third 
Figure) and thence the Mufcle proceeds to its Infertion 
into the lower Beak at k • From the concave Edge of this 
Mufcle there is a thin and tranfparent but very drong 
Membrane, drained like a Drum-head to the Scull at 
where it is very ftrongly fanned ; this Membrane is fur* 
milled with Capillary Veins and Arteries, and doubtlefs 
is Nervous, n . n. reprefents this Membrane. This Carti- 
lage, when the Tongue is exerted, parts about half an 
Inch from.the Root of the Beak at c ■ 
c.o A pretty large Vein and Artery. 
p< p. A Mufcle reaching from one Jaw to the other, 
under the Throat, ferving as a Bandage to keep in the 
Cartilage., and the Root and os Hycidts of the Tongue, 
as 1 may call it, from darting out at that Part where are 
the articulations of the Cartilages with the Bones, 
-when by the Mufcles, inferred into the Sheath at or near 
p and thence parting to the end of the Tongue, it is 
drawn into the Mouth. 
q. q. One of the lad mentioned Mufcles, which is 
round, of the rtze in the Figure, and fadned to the Bread 
of the Bird, cut off at r. 
s. The Afpera Arteria confiding of perfe# Rings. . 
t. t. A Mufcle accompanying the Afpera Arteria. 
F I G U R E the Second. 
A. A , The under part of the lower Bill. 
B b. The Tongue. 
b> The Place where the two Cartilages and two Bones 
reprefented by /. /. in Fig. 4. are brought into and in- 
clofed in one Tube or Membranous Sheath. 
C. C. Two Glands difplaced in this Figure. 
c . c. Two Mufcles attending thefe Glands, and fad- 
ned near the end of.the Bill. 
L 1 1 1 D. D . The 
