INDEX 



223 



Ostrich, 



bones of leg, A. B., 48. 



bones of wing, A. B., Fig. 48. 



egg, A. B., 51. 

 Ovary, P. B., 72, 73, 81, 88. 



of crayfish, A. B., 159. 



of fish, A. B., 137, Fig. 98. 



of frog, A. B., 114. 



of hen, A. B., 70, Fig. 54. 

 Ovipositor, A. B., 28. 

 Ovules, P. B., 72, 74. 

 Owls, A. B., 78, 87, 90, Fig. 65. 

 Oxidation, 



definition of, P. B., 13. 



in crayfish, A. B., 158. 



in fish, A. B., 135. 



in frog, A. B., 114. 



in man, H. B., 46, 122. 



liberation of energy by, P. B., 66. 



relation of oxygen and carbon 



dioxid to, P. B., 67. 

 Oxygen, P. B., 6. 



distribution of, H. B., 128. 



given off by green plants in sun- 

 light, P. B., 25. 



necessity for, H. B., 123. 



necessity of, for growth, P. B., 67. 



supply of, for animals, P. B., 25. 

 Oysters, A. B., 185. 



Palmately compound, P. B., 56. 

 Pancreas, 



of frog, A. B., 108, 110, Fig. 80. 

 of man, H. B., 2, 98. 

 Pansy, P. B., 79-82. 



Darwin's experiments with, P. B., 



82-84. 



Papillae of tongue, H. B., 85. 

 Paramecium, A. B., 164-170, Fig. 



118. 



Parsnips, P. B., 127, 156. 

 Pasteur, Louis, H. B., frontispiece, 



168-170. 



Pasteurization of milk, H. B., 17, 39. 

 Pasteurizers, H. B., 17, Fig. 8. 

 Pasteur treatment for hydrophobia, 



H. B., 41. 



Patent medicines, H. B., 78-81, Figs. 

 24, 25. 



Pea, 



flower, P. B., Fig. 35. 



fruit, P. B., 89, Figs. 35, 43. 

 Peaches, P. B., 96, 128. 

 Pelican, A. B., 73, Fig. 57. 

 Peppermint, P. B., 129. 

 Peptone, H. B., 96. 

 Perch, A. B., 121, Fig. 90. 

 Perching birds, A. B., 79. 

 Perennials, P. B., 158. 

 Peritoneum, H. B., 97. 

 Peritonitis, H. B., 97. 

 Permanent residents, A. B., 80. 

 Permanent teeth, H. B., 88. 

 Perspiratory glands, H. B., 140, Fig. 



43. 



Petals, P. B., 71, 79, 88. 

 Petri dishes, H. B., 14, Fig. 11. 

 Phoebe, A. B., 90. 

 Pinnately compound, P. B., 56. 

 Pipefish, A. B., Fig. 92. 

 Pistil, P. B., 71, 73, 81, 88, Figs. 24, 



28. 

 Pistillate flowers, P. B., 87, Figs. 32, 



B, 34. 

 Pith, P. B., 46, 47, 63. 



rays, P. B., 47, 63. 

 Placenta, P. B., 89. 

 Plant, 



family, P. B., 160, 170. 



genus, P. B., 160, 170. 



species, P. B., 161, 170. 



variety, P. B., 161, 170. 

 Plants, 



cells, P. B., 27. 



manufacture of food by, H. B., 51. 



microscopic structure, P. B., 27. 



nutritive organs, P. B., 39. 



organs and functions, P. B., 27. 



parts of, P. B., 26-31. 

 Plasma, H. B., 7. 



composition of, H. B., 107. 

 Pleura, H. B., 129. 

 Pleurococcus, P. B., 169, Fig 86. 

 Plow, P. B., 113, Fig. 50. 

 Plumule, P. B., 98. 

 Pneumonia, H. B., 34, 135. 

 Poison bottle, A. B., 1. 

 Pollen, P. B., 71, 73, Fig. 26. 



