Place the lard or butter in the stewpot, and when it melts add the onions, which have been nicely sliced. As they brown add the Goose, which has been cleaned, singed and nicely cut at the joints into pieces, and well rubbed with salt and pepper and the sausage, which must be cut in halves. Let simmer for about ten minutes, until every portion is slightly browned, and then add the minced herbs and garlic. After three minutes, add the spoonful of flour, mixing well, and let it all simmer for ten minutes longer, then pour in the can of mushrooms and their water, and add immediately the chestnuts. Let the Goose cook till tender and serve hot.