( 215 ) 
The Liquor, contain’d in the 'Pericardium, was 
f m al l in Quantity, and perfedly tranfparent. 
The Lungs lay under the Diaphragm and its 
Mufcles, in a deep Cavity, form’d by the five true 
Ribs. They were pretty thick about the middle, and 
exceeding thin and fharp towards the Extremities. 
In viewing the Eye external, it did fomewhat re- 
ferable .the Human Eye, except that it was lefs Con- 
vex, with a free and moveable upper Eye-lid, with Eye- 
lalhes, as mod Terredrial Animals have, befides a 7V 
nica Nitfitans, as in other Birds. Befides the feven 
Mufcles of the Eye, as they are in Brutes, it had two 
more, one arifmg from the fore-part of the Sclerotica 
which foon form’d a fmall Tendon, obliquely ground- 
ing the Optic Nerve, and then join’d to another Mufcle, 
which arifes oppofite to the former, from which the 
Tendon continues its Way, and is mferted m the Tu- 
nica, Nittitans. The Aqueous Humour we found in 
areater Quantity, than is common. The Cryjtalhne 
was of an uniform Subdance, but lefs Convex on the 
infide, then without. The Vitreous was fmall in 
Quantity, confidering the Largenefs of the Eye ; the 
Choroides was entirely black, without that \ ariet^ o. 
Colours at its Bottom, which is common tty mod Brutes. 
The fore-part of the Sclerotica , where it is annexed 
to the Cornea , was bony, confiding of if bony Scales 
join’d one to another, fo as to make one circular Bone 
round the Cornea. . . . \ 
As for a more particular Defcnption, I refer to the 
Anatomical Account given by the Royal Academy at 
<Paris> in their Natural Hiftory of Animals , and to 
Vallifneri , Profelfor at Tadua. , his Notomia del 
Struthio, 
Re * 
Vot. XXXIII. 
Kk 
