
) OF BIR D-S. ve og 
3 feparate from one another, foft and downy, and 
cannot be embodied together (that is joined) 
a fo as to ftrike the air with any advantage, which. 
. is the chief ufe of wings. Indeed all the feathers 
of the Oftrich are of the fame kind. The Zod , 
eye-lid is moveable. \ 
‘The time of laying their ‘eggs depends upon 
the climate which they inhabit : in the northern 
parts of Africa it is about the beginning of July, 
a _and in the fouthern parts of Africa about the latter 
end of December, i non 
The climate too dire&ts them very much in n the 
hatching théir eggs, In the torrid zone (which 
is the hotteft part a the world) they lay their 
_ eggs in a heap of fand, which they collect toge- 
o> ther with their feet; and there they fcarcely fit 
- upon them in the aight the heat of the fun is fuf- — 

4 
~ 
ficient to hatch them, and’ even that 4s fearcely 
__neceflary, for fome have been known to hatch _ 
that were never fat upon or expoled to the sgh 
oo of the fun. = es 1 
, : But though Olttiches do not fit at all, “or 
_ but very little upon their eggs, they by no means 
forfake them; for they watch them with great at. - 
tention, and feden lofe fight of the place where | 
_ they are ¢ laid. 
a 
: Ie 
