Place peaches in a large sauce pan. Add lemon juice to peaches. In a small bowl add flour, sugar, salt, cinnamon, nutmeg, stir together to mix and pour over peaches and toss to coat until peaches are coated with sugar mixture. Place sauce pan over medium heat and allow to come to a simmer. Then reduce heat and stir, cook until peaches are somewhat tender but not mushy, and juices have begun to thicken.