OF BIRDS °° 

When a Hen has laid about twelve or fourteen 
‘tggs, if they be not taken from her, fhe will be- 
vin to fit; but even though they fhould be re- 
moved, fhe will become broody (that is, defirous 
of fitting) after laying twenty-five or thirty ; and 
fiteven upon a fingle egg: but if fhe be dipped in 
cold water, fhe immediately lofes her inclination, 
of continuing upon her nett, 
During the time of incubation, or fitting, their 
bodies are {uppofed to be warmer than ufual, and 
they want but little food, -dtis faid that they turn 
their egos every day. ‘ 
After an egg has been fat upon fix hours, the 
head and back bone of the Chicken may be dif 
covered fwimming in a fluid which is at one end 
ofthe egg, and in the white. 
The fecond day the joints of the back bone 
faintly begin to form ; and one may fee the be- 
ginning of the wings, and of the veflels in the 
fomach, the neck, and the breaft; the head 
gtows larger, the traces of the eyes are feen, the 
heart beats, and the blood circulates or flows. 
The third day every thing becomes larger and 
more diftinet ; veins and arteries appear upon the 
bladders ek are upon the head, and ‘the mar- 
tow in the back bone is faintly feen, ae 
B2 The 
