1 1/2 tsp. plain gelatin
1/3 c. cold water
4 egg yolks
1/3 c. granulated sugar
1 tbsp. grated lemon rind
1 tbsp. lemon juice
1/3 c. plus 1 tbsp. orange juice
4 egg whites
1/4 tsp. salt
1/2 c. sugar
1/2 c. heavy cream, whipped

Add gelatin to water. Set aside. Put yolks in double boiler. Stir in 1/3 cup sugar, lemon and orange rind and juice of both. Cook, stirring over boiling water 5 minutes until thickened. Stir in gelatin until melted. Remove from heat. Cool in bowl of ice.

Beat egg whites, add salt and 1/2 cup sugar. Beat until stiff. Gently fold mixtures together. Put in baked pie shell. Cool. Top with whipped cream and refrigerate.