ment.) The prevention of flies and 

 mosquitoes. 



57. The stings of insects, 



a. Why they hurt. 



b. The cure of stings. 



58. Poisonous plants. 



a. Their description. 



b. The cure for their poison. 



59. Some wild animals, 

 GO. Furs and skins. 



Experiment 58. How to cure a skin. 

 (These subjects, Plants and Animals, are con- 

 tinued in the work for the eighth grade.) 



FOOD, VII. 



61. A brief summary of the facts stated under the 

 same topic in the work for the fifth and sixth grades. 



62. The geography of food, 



Experiment 59. Food geography maps. 



63. The renovation of worn-out soil. 



64. Home-mixed fertilizers. 



Experiment 60. Making fertilizers for 

 garden crops, 



65. Acid soil. 



a. The cause and effect, 



b. The cure liming. 



Experiment 61. Testing acid soils and 

 liming them. 



66. Food values. 



Experiment 62. The use of food charts. 



67. Starch. 



a. Sources, 



b. Cooking. 



c. Test. 



