When you boil a ham, put it into a copper, if you have one; let it be about three or four hours before it boils, and keep it well skimmed all the time; then if it is a small one, one hour and a half will boil it, after the copper begins to boil; and if a large one, two hours will do; for you are to consider the time it has been heating in the water, which softens the ham, and makes it boil the sooner.