Preheat oven to 400°.
Drizzle the bottom of a 13 x 9-inch baking dish with 1 1/2 tablespoons butter. Arrange pear halves in 3 rows, cut sides down, over the butter. Lightly spoon flour into a dry measuring cup, and level with a knife. Combine flour, 1/2 cup granulated sugar, baking powder, and salt in a small bowl. Add 1 1/2 tablespoons butter, milk, and brandy, and stir until well-blended. Spoon the batter around the pear halves. Combine 1/2 cup granulated sugar, brown sugar, and lemon rind; sprinkle over pear halves. Bake at 400° for 30 minutes or until bubbly.