INDEX 



Reproduction, 



of bird, A. B., 70. 



of butterfly, A. B., 11. 



of crayfish, A. B., 159. 



of fish, A. B., 37. 



of frog, A. B., 114. 



of grasshopper, A. B., 28. 



of house fly, A. B., 57. 



of living things, P. B., 3. 



of mammals, A. B., 190. 



of mosquito, A. B., 43. 



of paramecium, A. B., 169. 



of reptiles, A. B., 185. 

 Reproductive hyphse of molds, P. B., 



150. 



Reptiles, A. B., 185-187. 

 Respiration, definition, P. B., 68, 69. 



of crayfish, A. B., 158. 



of fish, A. B., 135. 



of frog, A. B., 113. 



of man, H. B., 122-138. 



of paramecium, A. B., 168. 

 Retina, H. B., 163. 

 Review, 



of digestion, H. B., 105, 106. 



of foods, H. B., 62, 63. 

 Review topics, H. B., 188-206. 

 Rhizoids of ferns, P. B., 163, Fig. 



83, C. 



Rhizome of fern, P. B., 162, Fig. 82. 

 Ribs, H. B., 146, Fig. 44. 

 Rind, P. B., 47. 

 Roasting meats, H. B., 54. 

 Robin, A. B., 85, 90, Fig. 71. 



eggs, A. B., 73. 

 Roe, A. B., 142. 

 Root-hairs, P. B., 40, Figs. 11, 12, 13. 



osmosis in, P. B., 44. 

 Root of tooth, H. B., 88, Fig. 30. 

 Roots, 



aerial, P. B., 102. 



functions of, P. B., 41-43. 



primary, P. B., 100. 



secondary, P. B., 100. 



structure of, P. B., 39-41. 

 Root-tip, P. B., 40. 

 Root tubercles, P. B., 144, Fig. 72. 



bacteria in, P. B., Fig. 73. 

 Rotation of crops, P. B., 124. 



Runner, P. B., 106. 

 Rusts, P. B., 152. 



Safeguards of body against disease^ 



H. B., 42. 



Saliva, H. B., 90-92. 

 Salivary glands, H. B., 91. 

 Salmon, A. B., 142-144, Fig. 107. 

 Sand, P. B., 110. 



San Jose scale, A. B., 59, Fig. 43. 

 Sap, of cell, P. B., 30. 



path through leaves, P. B., 59. 



path through roots, P. B., 42, 43. 



path through stem, P. B., 48, 49. 

 Scales of butterfly, A. B., 9, Figs. 7, 8. 

 Scarlet fever, H. B., 41. 

 Scavengers, birds as, A. B., 87. 

 Schleiden and Schwann, P. B., 29; 



H. B., 5. 



Science and its subdivisions, P. B., 3. 

 Scion, P. B., 105. 

 Scratching birds, A. B., 77, Figs. 62, 



63. 



Sea horse, A. B., Fig. 91. 

 Sea weeds, P. B., 169. 

 Secondary root, P. B., 100. 

 Seed-coat, P. B., 98. 

 Seed dispersal, P. B., 91-94. 

 Seed leaves, P. B., 98. 

 Seed-producing plants, P. B., 159- 



161. 

 Seedlings, comparison of, P. B., 103, 



104. 

 Seeds, P. B., 72, 74, 77, 97-105. 



numbers, produced by plants, P 



B., 115. 



Segments, A. B., 9. 

 Selection, artificial, P. B., 119. 

 Self-pollination, P. B., 79. 



prevention of, P. B., 84-86. 

 Sensations, 



of sight, H. B., 164. 



of sound, H. B., 167. 

 Sepals, P. B., 71, 79, 88. 

 Serum with antitoxin, H. B., 35. 

 Sexual generation, 



in fern, P. B., 163. 



in moss, P. B., 164, 166. 

 Shad, A. B., Fig. 109. 



