This is a very delicate shade of color bordering on pea green. Your
feathers must be white, or nearly so. If dirty whites, wash and rinse
thoroughly; and, if old faded out colors, pass through bleach of
permanganate of potash; after which prepare your bath of one gallon of
luke warm water and a small handful of starch, and enter your feathers,
rubbing them around between the hands. Take feathers from bath and add
about a half teaspoonful of turmeric; re-enter your feathers, keeping
them moving around in bath about half a minute. Then take out your
feathers and add to bath a couple of drops of diluted aniline green.
Re-enter feathers, first increasing the temperature of your bath
a few degrees by adding hot water, let them remain in bath about two
minutes longer, squeeze out and dry in the usual way.
Should your sample be more on the green, you will simply add a few
drops more diluted aniline green; and if more on the yellow, you can
use less. If the shade to be matched be darker than your feathers, add
more of each color in the preparation of first bath. If a rather dull
shade be desired, which in this color is quite frequently the case, a
small pinch of copperas about the size of a pea will have the desired
effect.
Should you find your color entirely too dark for your sample, wash off
thoroughly in soap suds, and rinse in hot water; after which dilute a
half teaspoonful of oxalic acid in a gallon of luke warm water, pass
feathers through for a few seconds and rinse off in luke warm water.
Then prepare your bath as per recipe, using a little more care and
judgment in your second attempt.