[ 3P4 3 
and made into Pellets of a convenient Size, given 
them Three times a Day till their Crops were full. 
I endeavoured to make the young Pigeons drink of 
the Infufion of Madder^ which were fed with the 
Root and Meal j but I could never fucceed, and was 
obliged to give them Water alone, as to the Pullets 
of the Firft Experiment. The Two young Pigeons 
fed with the Meal alone were lively and far, digefted 
their Food, and throve as well as if fed by the old 
ones. But on the contrary, thofe that were fed with 
the Pafte of Meal and Madder, took this Food only 
by Force, digefted ill, were dull and very thirfty. 
And though Care was taken to keep their Crop con- 
ftantly full, as well as the others, yet they grew 
leaner daily. They were always fhivering, and en- 
deavouring to get into the Sun, or near the Fire, to 
warm themfelves: And the ftrongeft of them was 
very lick by the loth Day. I got the Two killed, 
that had fed on the Meal alone, as well as the others 
that had the Madder given them ; and I preferved 
but Two, which appeared to me to have better borne 
the Elfed of it than the reft, and had the Bones of 
the Wings already tinged red. 
One of the Two was intended to be recoverd by a 
ftmple Diet, in order to fee, if, by prolonging its Life, 
the Colour, which was already very vifible in the 
Wing-bones, would wear off : But in Three Days 
time it was killed accidentally. However, I thought 
I perceived the Colout weaker than before the Change 
of Diet: And the fame Experiment, repeated fomc 
time after, confirmed me (in the Notion) that the 
Change of Food makes the Colour difappcar by 
degrees. I continued to feed the other remaining 
young 
