This is one of the most famous of American dishes, hailing from New England, like many other excellent American dishes.
Soak the beans overnight, drain and put in a saucepan with sufficient cold water to cover, bring to the boil and simmer till the beans are just beginning to soften. Drain on a colander and put in an earthenware casserole or pot, over a thin slice cut from the piece of pork. Over the beans put the rest of the pork, half cover it with more beans, and add the sugar, salt and syrup and sufficient boiling water to cover the whole. Cover and cook in a slow oven for about 6 hours, stirring occasionally and adding more water if necessary.