C3>5: 
the Stermm : at its Union with the Lungs it had a kind of 
Larynx : the PupMum Lachrymale in the Eye was double, &c. 
The Twenty fixth, eight Oftrkhes , in which they very 
largely difcourfe of the make of the Feathers of Birds, and 
joyning of the Fibres of each Feather to one another ; a great 
part of which, feems to have been taken out of Mr. Hook's in- 
genious Book of Mkrofcopkal Ohfervatiom^ the' they have not 
thought fit to own it. The Foot of this Animal feems con- 
trived for a fpeedy Courfe, in which its Wings are of great 
ufe : the different length of the Intefiines is obfervable, in 
fome being 50, whereas in another they were but 29 feet ; the 
C£cum, which was double, was wreath'd like a Screw, and the 
infide of the Colon provided withVal ves or femilunar leaves,Iike 
Membranes. A t the extremity of the Return was found a Blad- 
der filled with Urine. In this Defcription they difcourfe large- 
ly of the Ureters and genital Parts of Birds, as like wife of 
thei^;^^^, and its Divifions or £)/^?/)/7r^gpwd'j', and its Commu- _^ 
nication with the Bladders containing the Ventricle and Inte- 
Jiines : together with the manner and ufe oi Breathing in Birds ^ 
explaining it by a pair of double Bellows, &c. 
The Twenty feventh, the Cajfowar, a Bird but lately known ^ 
to the Europeans * it has no Quills nor Feathers for Jlying, and 
indeed but ihort Wings : that which was moft unufual v/as 
the want of a mufculous Gizzard, tho' a granivorous Animal; 
which might in fome fort be fupplied by the number of Ventri- 
cles, In this Subjeft they more particularly infifl on the Muf- 
cles of the Thorax necefl&ry for Refpiration, and a curious de- 
fcription of the Parts of the internal Eye lid in Birds ^ as to its 
Me^hanifm and Ufe. 
The Twenty eighth. They conclude thefe Difcourfe s with > 
that of a very large Land Tort ok, being four foot and J from the 
extremity of the Head to the Tail. Amongft the Internal Parts, . 
theStruftureof the Urine Bladder is very curious for its exte- 
riour Tunicle being membranous : the infide was ilrengthened 
with an infinite number of mufculous Fihres, not unlike thofe 
! in the Ventricles of the Hearts of Animals. This Contrivance 
A a 3 feems : 
