[ 1 
der to clear up this Point, I determin’d to make fome 
Experiments. The firft I made was upon a Cock, 
by mixing fome of the Madder Root with Fig ‘Duft, 
on which they feed. The Cock dying within fix- 
teen Days after his firft feeding on the Madder , I 
difle&ed him, and examin’d the Bones, not in the leaft 
Expectation of finding them ting’d in fo fmall a Time; 
but, to my great Surprize, found them univerfally of 
a Red Colour : So that, from this Experiment, it ap- 
pears, that the Madder alone caufes this Alteration 
But why the Bones only are affeCted, I fhall confider 
of in the Courfe of more Experiments. 
HI. The 
