46 BULLETIN 540, U. S. DEPARTMENT OF AGRICULTURE. 



cake may be cheapened by substituting for some of the eggs a liquid, 

 preferably water, and baking powder, in the proportion of one-half 

 teaspoonful of baking powder and two and one-half tablespoonfuls 

 of water for each egg. The general proportions for sponge cake are 

 one-fourth cup of flour and one-fourth cup of sugar to each egg, or 

 equal amounts of egg, flour, and sugar, since each egg is supposed to 

 measure one-fourth cup. Bake in an oven at 175° C. (350° F.). 



References. — Textbook on foods. Any good recipe book. 



Correlation. — Physics: Expansion of air. 



Supplementary topic. — Discuss the omission of elaborate desserts 

 in a home in which the mother is overworked. List desserts suitable 

 for different occasions during the year. 



LESSON 128. 



Problem. — To seam the skirt. 



Points to be brought out. — The kind of seams used should*be adapted 

 to the material. If it is heavy, the seams should be tailor-stitched 

 and the edges overcast or bound. If it is light, French seams may 

 be used. 



References. — Same as in Lesson 120. 



Supplementary topic. — Discuss means of keeping the father's and 

 brother's clothing neat and attractive — proper ways of folding and 

 hanging, coat forms, pressing, "dry cleaning," etc. Neatness in 

 working clothes. How often should overalls be washed ? 



LESSON 129. 



Problem. — To determine the reasons for the great fluctuations in 

 the price of eggs. Preservation of eggs. 



Points to be brought out. — Large numbers of eggs are lost through 

 inefficient handling in the homes and on the farm. Infertile eggs 

 keep very much longer than the fertile ones. Water glass is very 

 useful as a preservative. Evidence seems to point to the spring egg 

 as the best to preserve. 



References.— U.S. Dept. Agr., Farmers' Buls. 103*, p. 17; 273*, p. 17; 

 296*, p. 29; 353*, p. 14; Production and Handling of Market Eggs, 

 Mo. State Poultry Expt. Sta. Bui. 5 (1915). 



Correlation. — Arithmetic: Calculate the increase in price of 50 

 dozens of eggs when held over from April until December, allowing 

 for cost of water glass, crocks, and time necessary in handling. How 

 many eggs might well thus be preserved for your family? How 

 much would be saved by using preserved eggs and selling your fresh 

 eggs in winter ? 



Supplementary topic. — Describe a plan for a cooperative egg-ship- 

 ping association; the shipping of eggs by parcel post. U. S. Dept. 

 Agr. Farmers' Bui. 656, Community Egg Circle. 



