Take three fresh eggs and break them into one quart of clear, cold
rain-water; stir until thoroughly mixed; bring to a boil on a slow
fire, stirring often; then add half an ounce of sulphate of zinc
(white vitrol); continue the boiling for two minutes, then set it off
the fire. Take the curd that settles at the bottom of this and apply
to the eye at night with a bandage. It will speedily draw out all
fever and soreness. Strain the liquid through a cloth and use for
bathing the eyes occasionally. This is the best eye-water ever made
for man or beast. I have used it for twenty years without knowing it
to fail.