Orange Chiffon Cake- Betty Crocker Chiffon Cake recipes and secrets

Today I was going through some booklets in my original collection and I came across this vintage Betty Crocker booklet from 1948. Betty is looking quite severe on the cover, not even a smile. The title is Betty Crocker Chiffon Cake recipes and secrets. The small words at the top are: First Sensational Collection. On the back cover there are quotes exclaiming the wonders of chiffon cakes. "McCall's Magazine- It's the fastest to make, one of the biggest and certainly one of the best tasting cakes ever tested in McCall's kitchens!" I have only made a chiffon cake once, a long time ago but I remember it took quite awhile to make. The booklet describes a chiffon cake as "combining the lightness of angel food with the richness of butter cake." There are quite a few recipes; plain, orange, cherry, marble, cocoa, chocolate chip, butterscotch, bit o'walnut, maple pecan and spice cakes. An interesting feature is that each recipe is given in two proportions one for a large cake serving 16 to 20 and the other for a small cake serving 8 to 10.
Here is the recipe for a large orange chiffon cake:

Orange Chiffon
2 1/4 cups sifted Softsilk Cake Flour
1 1/2 cups sugar
3 teaspoons baking powder
1 teaspoon salt
MEASURE and SIFT together above ingredients in mixing bowl. Make a well and add in order:
1/2 cup cooking (salad) oil
5 unbeaten egg yolks (medium size)
3/4 cup cold water
grated rind of 2 oranges (about 3 tablespoons)
Beat with spoon until smooth.
Measure into large mixing bowl:
1 cup egg whites (7 or 8)
1/2 teaspoon cream of tartar
WHIP until whites form very stiff peaks. They should be much stiffer than for angel food or meringue. DO NOT UNDERBEAT.
POUR egg yolk mixture gradually over whipped egg whites-gently folding with rubber scraper just until blended. DO NOT STIR! POUR into ungreased pan immediately. BAKE in 10-inch tube, 4-inch deep at 325 degrees 55 minutes then 350 10 to 15 minutes. or 9x13x2-in. oblong 350- 45 to 50 minutes. or until top springs back when lightly touched. Immediately turn pan upside down, placing tube part over neck of funnel or bottle, or resting edges of square, oblong, or loaf pans on 2 other pans. Let hang, free of table, until cold. Loosen from sides and tube with spatula. Turn over and hit edge sharply on table to loosen.

Fluffy Orange Icing
Ideal for your orange Chiffon... Cream one and one half 3 0z. pkg. cream cheese until light and fluffy. Gradually add 2 1/4 cups sifted confectioners' sugar. Beat well. Stir in grated rind of 2 oranges...1 1/2 tbsp. If too thick to spread, add a few drops of orange juice.

This booklet certainly went all out with the italics and capital letters!