Put on a slow fire an ounce of white isinglass, pulled into small
pieces, and rinsed, a pint of water, with the rind of six lemons. Stir
it constantly till dissolved, then add a pint of lemon-juice, and
sweeten it to the taste with nice white sugar. Boil the whole four or
five minutes, then color it with tincture of saffron, and let it pass
through a flannel bag, without squeezing it. Fill your jelly glasses
with it when partly cooled.