5 c  Watermelon; seeded & cubed
3/4 c  Sugar
1 tb Lemon juice
1    Envelope unflavored geletin
1/4 c  Water
12 oz Evaporated skimmed milk

Combine first 3 ingredients; cover and chill 30 minutes. Place watermelon
mixture in container of an electric blender or food processor. Top with
cover, and process until smooth; set aside. Sprinkle gelatin over water in
a small sauxepan; let stand 1 minute. Cook over medium heat, stirring until
gelatine dissolves; remove from heat. Combine watermelon mixture, gelatin
and milk. Pour into freezer container of a 5-quart hand-turned or electric
freezer. Freeze mixture according to manufactuers instructions.