204 



INDEX 



Herb, 156, Fig. 80. 



High school education, value of, 124. 



Hilum, 97. 



Hixon, Miss Kate B., 191 (footnote). 



Horse-chestnut, stem, 45, 52. 



leaves, Fig. 20, K. 

 Human welfare, relation of plants to, 



126-153. 

 Humus, 111. 

 Hybrid fruits, 122. 

 Hydrogen, 9. 

 Hyphse of molds, 150. 

 Hypocotyl, 98. 



Improvement of plants by man, 119- 



125, Figs. 57, 59. 

 Indigo, preparation of, 145. 

 Insects, a danger to forests, 137. 



loss of crops due to, 117. 

 Iodine solution, preparation, 15. 

 Irrigation, 111. 



Jute, 145. 



Kerosene, 133. 



King, Dr. C. A., 102 (footnote). 



Kupfer, Miss Elsie M. (footnote), 27. 



Laboratory equipment, 171-177. 



table, 171. 

 Lateral buds, 53. 

 Layer, 106. 

 Leaflets, 56. 

 Leaf scars, 53. 

 Leaf-stalk, 55. 

 Leaves, arrangement of, 52. 



Structure of, 55. 

 Lenticels, 51, 55, 62. 

 Lettuce, 127. 



Life-history of a seed-plant, 195. 

 Lifeless things, characteristics of, 1. 

 Lilac leaf, Fig. 20, A. 

 Lime water, preparation of, 5. 

 Linden fruit, 91. 

 Linen, preparation of, 145. 

 Living things, characteristics of, 1. 

 Lumber, 133. 



Lumbering, wrong method of, Fig. 67. 

 right method of, Fig. 68. 



Malt, 148. 



Mann, Paul B., 66 (footnote). 



Maple, fruit, 91. 



sugar, 136. 

 Medicines, 129-130. 

 Medullary rays, 47, 50, Fig. 17. 

 Mesophyll, 57, 60. 

 Micropyle, 76, 98, Fig. 29. 

 Milkweed fruit and seeds, 92, Fig. 36. 

 Mineral matter, test for, 20. 

 Mixture, definition of, 12. 

 Moisture, relation to germination and 



growth, 108-109. 

 Mold, bread, 149-151, Fig. 75. 



vegetable, 111. 



Monocotyledons, 159, 160, 170. 

 Mosses, 164-166, Fig. 84. 



moss plant, 164. 



protonema, 164. 

 Mushrooms, 151, Fig. 76. 



Nectar, 80. 



Nitric acid, test for protein, 18. 



Nitrogen, 11. 



Note-books in biology, 181-187. 



Nucleus, 28, 29. 



Nutrition, in fungi, 150. 



in green plants that produce seeds, 



194. 

 Nutritive hyphse, 150. 



organs of plants, 39. 



Oak, wood, 46. 



leaves, Fig. 20, C, G. 



tree, amount of evaporation from 



136. 



Opium, 129. 



Opposite arrangement, 52. 

 Orange crop, 120-122. 

 Order of topics, 178-180. 

 Organs, of a plant, 27. 



nutritive, 39. 

 Osmosis, 32-38. 



water, 33. 



of grape sugar, 33. 



in living cells, 34. 



of starch, 35. 



definition and applications, 35. 



protein, 37. 



