INDEX 



167 



Nucleolus, 81. 



Nucleus, 40, 68, 135, 138. 



chromidia of, 128. 



in cyanophyceae, 108. 



in differentiation, 124. 



in heredity, 117. 



origin of, 134. 

 Nuttall, 64. 

 Nymph, 83. 



Olive fly, 82. 

 Olive tree, 82. 



tubercules of, 82. 

 Oliver, 22. 

 Orchids, 65. 

 Organ, 



of cell, 42. 



formation, 89. 



light, 146. 



luminiferous, 85, 88, 101. 



normal activity of, 139. 



of internal secretion, 139. 

 Organisms, 



dependence on chemicals, 130. 



elementary, 10. 



host, 92. 



pathogenic, 113. 



primordial, 10, 39. 



regressive, 142. 

 Origin of species, 2, 3, 8, 9, 104. 

 Osborn, 3, 131, 132. 

 Osmotic pressure, 73. 

 Ovaries, 80. 

 Oviduct, 80. 

 Ovum, 74, 80, 122, 124. 

 Oxygen, 70, 86. 



Paleontology, 143. 

 Pancreas, 139. 



secretion of, 140. 



zymogen of, 22. 

 Pandorina, 142. 

 Paoli, 82. 

 Pangens, 124. 

 Pangenesis, 115, 123. 



Paramecium, 60. 



bursaria, 71. 



food vacuoles of, 46. 

 Parasite, occasional, 83. 

 Parasitism, 59, 60, 64, 66. 



intracellular, 60. 



extracellular, 60. 

 Parathyroid secretion, 22. 

 Parotid secretion, 22. 

 Pasteur, 113. 

 Pathology, 65, 144. 

 Pelomyxa vivipara, 72. 

 Penard, 70. 

 Pensa, 22. 

 Peptone, 34. 



Periplanela orienialis, 79. 

 Petersen, 30. 

 Petri, 82. 

 Phagocytes, 78. 

 Pharynx, 82. 

 Philiptschenko, 79. 

 Phosphatids, 17, 18, 20, 21. 

 Phospholipin-albumin, 13, 14, 17, 18, 



20, 22, 42. 

 Phosphorus poisoning, 48. 

 Photosynthesis, 77. 

 Pierantoni, 85, 88. 

 Pigment, 22, 42, 141. 

 Plant, 62. 



behavior, 7. 



instability of, 7. 



microsymbiosis in, 89. 



single celled, 67, 68. 



stability of, 7. 



variation in structure, 4. 

 Plastosomes, 124. 

 Plasts (plastids), 14, 42, 86. 



amyloplasts, 108. 



chloroplasts, 107, 108. 



chromoplasts, 108. 



leucoplasts, 108. 



living properties of, 22. 



phylogenetic origin of, 109, 110. 



reproduction of, 111. 

 Pleomorphism, 36, 47, 48, 61, 99. 



