Gather them while the shells are very soft, and rub them all with a flannel. Then wrap them singly in vine leaves, lay a few vine leaves in the bottom of a large stone jar, put in the walnuts, (seeing that each of them is well wrapped up so as not to touch one another,) and cover them with a thick layer of leaves. Fill up the jar with strong vinegar, cover it closely, and let it stand three weeks. Then pour off the vinegar, take out the walnuts, renew all the vine leaves, fill up with fresh vinegar, and let them stand three weeks longer. Then again pour off the vinegar, and renew the vine leaves. This time take the best cider vinegar; put salt in it till it will bear an egg, and add to it mace, sliced nutmeg, and scraped horse-radish, in the proportion of an ounce of each and a gallon of vinegar to a hundred walnuts. Boil the spice and vinegar about ten minutes, and then pour it. hot on the walnuts. Cover the jar closely with a cork and leather, and set it away, leaving the vine leaves with the walnuts. When you take any out for use, disturb the others as little as possible, and do not put back again any that may be left.