Growth, necessity of foods for, H. B., 45. Growth of crystals, P. B., 2, foot- Growth of living things, P. B., 2, 30. experiments on dogs, H. B., 68-72. Honeybees, A. B., 33–41. Honey stomach, A. B., 39, Fig. 28. Guard-cells of stoma, P. B., 58, 61, 62, Horse, A. B., Fig. 137. Fig. 21. Gull, A. B., Fig. 59. Gullet, of fish, A. B., 130. of frog, A. B., 108. of man, H. B., 92. of paramecium, A. B., 165. Habit, importance of, H. B., 159. of breathing, H. B., 132. Hawk, A. B., 78, 87, 89, 91, Fig. 64. 122. Headache powders, H. B., 78. of fish, A. B., 131, Fig. 100. of frog, A. B., 107, 111. of man, H. B., 1, 109. Heat, energy, P. B., 64. relation of, to soil, P. B., 112. Hen, egg of, A. B., Figs. 52, 54, 56. Heron, A. B., Fig. 60. Herring, A. B., Fig. 110. Herring gull, A. B., Fig. 59. High school education, value of, P. B., Hilum, P. B., 97. Hodge, Professor C. F., Horse-chestnut, leaves, P. B., Fig. 20, K. stem, P. B., 45, 52. House fly, A. B., 57, 58, Fig. 40, 41. Humming bird, egg of, A. B., Fig. 56. Hybrid fruits, P. B., 122. Hydra, A. B., 176, Figs. 124, 125. Hydrophobia, H. B., 41, 170. of blood, H. B., 108. of circulation, H. B., 119–121. of muscles, H. B., 151. of nervous system, H. B., 160. of respiratory organs, H. B., 132. Injurious effects of bacteria, H. B., 23. | Labial palps, Insecticides, A. B., 61. Insect net, A. B., 1, Fig. 1. a danger to forests, P. B., 137. butterflies and moths, A. B., 1–22. grasshoppers, A. B., 22-31. of fish, A. B., 130, Fig. 98. of fish, A. B., 62. Jaundice, H. B., 102. Jenner, Dr. Edward, H. B., 40. Katydids, A. B., 31. Kerosene, P. B., 133. emulsion of, A. B., 61. treatment for mosquitoes, A. B., 55. Koch, Sir Robert, H. B., 30, Fig. 13. of bee, A. B., 32. of butterfly, A. B., 7. equipment, H. B., 171–177. Labrum, A. B., 23, Fig. 18. of bee, A. B., 40, Fig. 29. of mosquito, A. B., 43, Figs. 31, 32 Lateral buds, P. B., 53. Laws relating to bird protection, A. to protection of fish, A. B., 150. Leaf scars, P. B., 53. arrangement of, P. B., 52. Leg, skeleton of, A. B., Fig. 51; Lenticels, P. B., 51, 55, 62. Life history, of a seed plant, P. B., 195. of bird, A. B., 70. of butterfly, A. B., 10-12, Fig. 6. of crayfish, A. B., 159. of fish, A. B., 137, Fig. 103. of frog, A. B., 114, Fig. 84. 20. of house fly, A. B., 57, Fig. 41. Life insurance and total abstinence, of, H. B., 22. preparation of, P. B., 145. Liver, of fish, A. B., 131, Fig. 98. of frog, A. B., 108, 110, Fig. 80. Lizard, A. B., Fig. 134. oi amoeba, A. B., 170, 171. of crayfish, A. B., 151, 152. of hydra, A. B., 177, Fig. 125. of mussel, A. B., 182. of paramecium, A. B., 166. Loss due to insect pests, A. B., 60. Louse, A. B., 60, Fig. 44. Lumbering, right method of, P. B., Fig. 68. wrong method of, P. B., Fig. 67. of frog, A. B., 103. fruit, P. B., 91. of bee, A. B., 32. of crayfish, A. B., 155. of grasshopper, A. B., 24, 27. composition of, H. B., Fig. 19. Menhaden, A. B., 142. Microbes, H. B., 23, footnote. Migration of birds, A. B., 80. Milk, food substances present in, H. B., 46. Milk supplies, H. B., 38. Milk teeth, H. B., 87. Milkweed fruit and seeds, P. B., 92, Millinery purposes, destruction of of man, H. B., 2, 127, Figs. 2, 40. Mineral matter, Molar teeth, A. B., 188; H. B., | Nettling cells, A. B., 177. Monocotyledons, P. B., 159, 160, 170. Nucleus, P. B., 28, 29; H. B., 6, Muscular energy, A. B., 127, 158; Opposite arrangement, P. B., 52. H. B., 123. Mushrooms, P. B., 151, Fig. 76. Nails, care of, H. B., 142. Necturus, A. B., Fig. 89. of birds, A. B., 72, Fig. 73. Orange crop, P. B., 120-122. Order of topics, H. B., 178-180. 173. Organs, nutritive, P. B., 39. of a plant, P. B., 27. of circulation, H. B., 108-118. definition and applications, P. B. in living cells, P. B., 34. Ostrich, bones of leg, A. B., 48. bones of wing, A. B., Fig. 48. Ovary, P. B., 72, 73, 81, 88. of crayfish, A. B., 159. of fish, A. B., 137, Fig. 98. of hen, A. B., 70, Fig. 54. Owls, A. B., 78, 87, 90, Fig. 65. definition of, P. B., 13. in frog, A. B., 114. in man, H. B., 46, 122. liberation of energy by, P. B., 66. Oxygen, P. B., 6. distribution of, H. B., 128. Pea, flower, P. B., Fig. 35. fruit, P. B., 89, Figs. 35, 43. Perch, A. B., 121, Fig. 90. Permanent residents, A. B., 80. 43. Petals, P. B., 71, 79, 88. Petri dishes, H. B., 14, Fig. 11. Pinnately compound, P. B., 56. Pistil, P. B., 71, 73, 81, 88, Figs. 24, given off by green plants in sun- Pistillate flowers, P. B., 87, Figs. 32, light, P. B., 25. necessity for, H. B., 123. necessity of, for growth, P. B., 67. Palmately compound, P. B., 56. of frog, A. B., 108, 110, Fig. 80. Pansy, P. B., 79-82. Darwin's experiments with, P. B., 82-84. Papillæ of tongue, H. B., 85. Paramecium, A. B., 164-170, Fig. 118. Parsnips, P. B., 127, 156. Pasteur, Louis, H. B., frontispiece, Pasteurization of milk, H. B., 17, 39. B, 34. Pith, P. B., 46, 47, 63. rays, P. B., 47, 63. family, P. B., 160, 170. Plants, cells, P. B., 27. manufacture of food by, H. B., 51. organs and functions, P. B., 27. composition of, H. B., 107. Pneumonia, H. B., 34, 135. Patent medicines, H. B., 78-81, Figs. Poison bottle, A. B., 1. 24, 25. Pollen, P. B., 71, 73, Fig. 26. |