224 



INDEX 



Pollen basket, A. B., 33, Fig. 26. 



Pollen tubes, P. B., 75, Figs. 26, 27. 



Pollination, P. B., 74, 76, 88. . 



Pond scum, P. B., 166. 



Poppy, P. B., 129. 



Porifera, A. B., 175. 



Posterior, A. B., 6. 



Potato crop of New York State, P. B., 



122. 



Potatoes, P. B., 107, 127, Fig. 49. 

 Preparations for laboratory, H. B., 



175. 



Preservation of food, H. B., 23. 

 Pressure, effect of, on bones, H. B., 



148, Fig. 46. *$ 



Prevention, 



of diphtheria, H. B., 36. 



of self-pollination, P. B., 84, 85. 



of tuberculosis, H. B., 32 



of typhoid fever, H. B., 37. 

 Primary root, P. B., 100. 

 Proboscis, A. B., 6, 10. 

 Production of energy, necessity of 



foods for, H. B., 45. 

 Proper posture, H. B., 153, Figs. 48, 



49. 



Propolis, A. B., 40. 

 Protective resemblance, 



of crayfish, A. B., 157. 



of toad, A. B., Fig. 87. 



of walking stick, A. B., 31. 

 Protein, 



composition of, P. B., 14, 15. 



manufacture of, P. B., 24, 61. 



osmosis, P. B., 37. 



test for, P. B., 18. 



use of term, P. B., 13, footnote. 

 Protection of forests, P. B., 138, 139. 

 Proteins, 



digestion of, H. B., 95, 96, 98. 



in human body, H. B., 44. 



uses of, H. B., 51. 



Prothallus of fern, P. B., 162, Fig. 83. 

 Protonema of moss, P. B., 164. 

 Protoplasm, P. B., 30; H. B., 5. 

 Protozoa, A. B., 172. 

 Proximal, A. B., 6. 

 Pseudopods, A. B., 170, 171. 

 Pulp cavity, H. B., 89. 



Pulse, H. B., 112, 114. 



Pumpkin, cross-pollination, P. B., 85. 



Pupa, 



of bee, A. B., 41, Fig. 29. 



of butterfly, A. B., 12, Fig. 6. 



of mosquito, A. B., 44, Figs. 31, 32. 

 Pupil of eye, 



of bird, A. B., 62. 



of man, H. B., 163. 

 Purchase of foods, economy in, H. B., 



58. 

 Pure Food and Drug Law, H. B., 24, 



81. 



Pus, H. B., 29. 

 Pylorus, H. B., 93. 



Quail, A. B., 90, Fig. 62. 

 Quartered oak, P. B., 47. 

 Queen-bee, A. B., 35, Fig. 24. 

 Quinine, P. B., 129. 



Radiometer, P. B., 66, footnote. 

 Rainfall, regulation of, P. B., 136. 

 Raspberry fruits, P. B., Fig. 40. 

 Rats and mice destroyed by birds, 



A. B., 87, Fig. 64. 

 Reasons for cooking animal foods, 

 H. B., 52. 



for cooking vegetables, H. B., 54. 

 Red corpuscles, 



of frog, A. B., Ill, 113. 



of man, H. B., 8, 128, Fig. 5. 

 Reed, Dr. Walter, A. B., 50, Fig. 34. 

 Reference books, list of, suggested, 



H. B., 207-209. 

 Reflex activities, H. B., 158. 

 Reforesting, P. B., 138. 

 Regions of body, H. B., 1. 

 Relatives, 



of bees, A. B., 43. 



of grasshoppers, A. B., 31. 

 Repair, necessity of food for, H. B., 



45. 



Repair of living things, P. B., 2. 

 Reproduction, 



in plants, P. B., 70-96. 



of amoeba, A. B., Fig. 172. 



of bacteria, H. B., 12, Fig. 7. 



of bee, A. B., 36. 



