“3 THE NATURAL HISTORY 
The fourth day the feveral humours of the eye 
may be difcovered, the wings grow, the thighs 
begin to appear, and the _ to be covered with 
flefh. 
The fixth day the liver tneiat back; and the 
body gets a {kin. | 
‘The 7th day the beak is fen, -_ the begin 
_, ning of feathers. 
- The lungs appear the seth cy and the tenth | 
day the heart is quite formed. 
From that time until the Chicket bs hatched, | 
every part becomes daily more perfect. 
If the Hen fhould leave the neft for nearly a day 
_ towards the latter end of the time of her fitting, 
(and the weather fhould then be warm,) this does 
‘not always oecafion the Chickens to die, but will 
prevent their being hatched fo foon by feveral days 
as otherwife they might have been. | 
In Egypt, eggs are hatched: in ovens ; the art 
confitts ; in giving them the proper degree of heat, 
(which is a few degrees more than that of the 
human body) to keep out moifture, and to turn | 
them often: but thefe Chickens are frequently 
imperfect, ond after we: are hatched ee a 
creat care, 
Mr. Reaumur, a very ingenious E renchiifany | 
invented for that purpofe artificial Hens, which 
are 


