196 



ELEMENTARY AGRICULTURE 



Fertilizer, effect of, illustra- 

 tion, 40. 



in stock food, 93. 

 the best, 38. 

 Fertilizers, commercial, 39-42. 



plants as, 39. 



Fertilizing substances, table 

 showing amount of in farm 

 crops, 29. 

 table snowing amount of in 



average soils, 35. 

 table showing amount of in 



dairy products, 46. 

 table showing amount of in 



farm animals, 46. 

 table showing amount of in 



fertilizers, 42. 



Foods, classification of, 100. 

 different uses of, 102, 103. 

 importance of right selection, 



100. 



special kinds needed, 103. 

 special proportions, 103. 

 experimental study of, 105, 



106. 



Flower beds, 175. 

 Forest, destruction of, 162, 163. 

 economic use of, 163, 164. 

 illustration, 147. 

 importance of, 161. 

 influence of, 161, 162. 

 nature of, 161. 

 edge of, illustration, 162. 

 Forests prevent drought, 166. 

 Formaldehyde, 80, 83. 



Gardening, essentials of, 176. 



home, 177-180. 



home and school, 168-172. 



school, 173-176. 

 Germination, II. 

 Glacial drift and rock decay, 

 31, 32- 



illustration, 32. 

 Graduate, how made, 26. 



Handy values. 15. 

 Hens, illustration, 131. 



Harvest time, illustration. 71. 

 Herd, selection of, 124. 

 How plants store food, 10. 



use water, 19. 

 Humus, 33. 



Insect growth, stages of. illus- 

 tration. 77. 

 Insects and plant diseases, 76. 



experimental study of, 81. 



kinds, 78. 



how destroyed, 78. 



life of, 77. 

 Iron-rust, 23. 



Legumes, 49, 50, 51. 

 Lime, 23. 

 Loam, 33. 



Magnesia, 25. 



Marshy land before drainage, 



illustration, 64. 

 after drainage, illustration, 



65- 



Milk, bacteria in, 120, 121. 

 bad odors in, 120. 

 care of, 120, 121, 122. 

 experimental study of, 125- 



127. 



separator, 119. 

 Milking, necessary precautions 



in, 122, 123. 

 Moisture, regulation of, 20. 



Nitrogen, in soil, 38. 

 in the air, 50. 

 nature of, 50. 

 preparation of, 28. 

 restoration of. to soil, 52. 



Oat smut, how destroyed, 80. 

 Onion growing, illustration, 



133- 

 Onions, advantages of raising, 



140, 141. 



best varieties, 143. 

 cultivation, 142. 

 how to plant, 142. 

 kind of soil needed. 141, 142. 

 when ready for harvest, 143. 



