HOME ECONOMICS FOR SOUTHERN SCHOOLS. 13 



compound. Alkalis soften water by throwing the mineral com- 

 pounds out of solution. Care must be taken to avoid using an alkali 

 which will harm the material to be washed. 



References. — Kose, The Laundry, Cornell Reading Courses, 1 (1912), 

 No. 11, pp. 114-117; Handy and Pract. Farm Libr. [Missouri], Mo. 

 Bui., 13 (1915), No. 2, p. 82; any good book on home laundry 

 work. 



Correlation. — Chemistry: Alkalis and the means of detecting them. 



Supplementary topic. — Describe the water supplies on your home- 

 stead, and suggest ways of making the water supply more convenient 

 at the house. 



LESSON 12. 



Problem. — To recook any jelly which was found unsatisfactory at 

 the last lesson. 



Points to be brought out. — If an examination of the juice shows too 

 little pectin, add some from another source, such as apple or white 

 rind of the orange or lemon. If the juice is not sufficiently acid, add 

 an acid from another source, lemon juice or citric acid. In case the 

 proper amount of sugar has not been used, make the necessary cor- 

 rection. In some cases a soft jelly may be stiffened by allowing it 

 to stand for a short time in the sun. 



References.— Univ. 111. Bui., 8 (1911), No. 7, Goldthwaite; Pres- 

 ervation of Food in the Home, Univ. Mo. Bui., 15 (1914), No. 7, Cov- 

 ering with paraffin; U. S. Dept. Agr., Farmers' Buls. 78*, p. 29; 122*, 

 p. 27; 175*. 



Correlation. — Arithmetic: Estimation of the cost of the jelly. 

 Comparison in cost with the commercial product. 



Supplementary topic. — List the kinds of fruits you know which will 

 and which will not jelly. Ascertain the localities in the United States 

 in which fruit raising is an important industry. 



LESSON 13. 



Problem. — Let each student clean her room and write an account 

 of the process, giving the reason for each step. Discuss these accounts 

 in class and make a plan to be followed by each of the girls in the care 

 of her room. 



Points to be brought out. — Thorough airing of bed and room is neces- 

 sary. In cleaning care should be taken not to distribute dust. In 

 dusting it is best to work downward from the upper part of the room. 



References. — Watson, Rules for Cleaning, Cornell Reading Courses, 

 1 (1912), No. 23; a good book on the care of the house. 



Correlation. — Arithmetic or English : Time and energy cost of clean- 

 ing rooms. Cost of equipment and supplies used. 



