Arrange scallops in a 9 x 13-inch baking dish. In a small bowl, stir together the cracker crumbs, garlic salt & pepper. Sprinkle the scallops evenly with the cracker crumb mixture, then Parmesan. Pour the butter over all, then sprinkle evenly with the lemon juice & vermouth. Cover the dish with foil & bake for 20 minutes, then remove foil & bake an additional 10 minutes.