Take twoteacupfuls of corn, parch it thoroughly, being careful not to burn it; add a good handful of hops; boil in water enough to cover well, for an hour and a half. Pare six good-sized potatoes, and boil them for half an hour with the corn and hops. Sift the potatoes (when done) through a colander, and strain the liquor through a cloth onto the potatoes; add atablespoonful of vinegar, onecup of sugar, and a halfcup of salt; put in cold water enough to make up a gallon. Put the whole in a jug, having added a teacupful of good yeast to raise it. Set the jug, without corking, in a warm place till it begins to "work," then cork it and put it in the cellar, and the longer it stands the better it becomes. When wanted for bread, you should (at noon) take five or sixboiled potatoes, mash them very fine, stir in a teacupful of flour, and pour on aquart of boiling water; then put in acup nearly full of yeast, and set the ferment in a warm place till night; then set a soft sponge, with warm water and flour, adding the ferment; it will be ready to mould up hard the first thing in the morning. Let it rise till quite light, then mould it out in loaves, rise again, and bake in the usual way. The sponge should not be set near the stove. The superior qualities of this yeast are shown by the fact that you never use saleratus in the bread, and it never sours. If the directions are followed, with good flour, you may be sure of sweet light bread every time.