Recipe - Orange Cream Cake

2 cup Cake flour, sifted
2 teaspoon Baking powder
One half cup Butter
1 cup Sugar; sifted
2/3 cup Milk
1 teaspoon Vanilla
3 Egg white; stiffly beaten
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ORANGE FILLING*
3 tablespoon Cake flour
1 cup Sugar
1 Orange rind; grated
One half cup Orange juice
3 tablespoon Lemon juice
One fourth cup ;Water
1 Egg; slightly beaten
2 teaspoon Butter
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SEVEN MINUTE FROSTING*
2 Egg white; unbeaten
1 One half cup Sugar
5 tablespoon ;Water, cold
One half teaspoon Salt
1 teaspoon Vanilla
2 Marshmallow; cut in eighths
1 teaspoon Corn syrup, light