168 



INDEX 



Poison-gland secretion, 22. 

 Policard, 17, 21. 

 Polychaetes, 77. 

 Polyp, 74. 

 Polysaccharides, 16. 

 Portier, 23, 24, 25. 

 Portuguese man-of-war, 93. 

 Precipitation, 13. 

 Precipitation bodies, 17. 

 Pregnancy, 56. 

 Pregnant, 13, 18, 22, 79, 107. 

 Prepucial-gland secretion, 22. 

 Pressure, 70, 145. 

 Principle, 

 cardinal, 2, 3, 5, 146. 

 of organic evolution, 133. 

 of separate creations, 133. 

 Progressive evolution, 3, 5, 147. 

 Properties, 

 physical, 65. 

 chemical, 65. 

 Prosecretions, 42. 

 Prostate secretion, 22. 

 Prothorax, 87. 

 Protista, 40. 

 Protoplasm, 20, 40, 133. 

 a colloidal complex, 102. 

 cohesive property of, 142. 

 responses to chemical forces, 102. 

 Protoplasmic bridges, 61. 

 Prototaxis, 58, 60, 61, 62, 134. 

 classification, 60. 

 definition, 58. 

 negative, 58. 

 object of, 65. 

 positive, 58, 134. 

 tendency in, 65. 

 Protozoa, 60, 70. 

 ciliate, 142. 

 flagellate, 142. 

 fresh water forms, 69. 

 marine forms, 69. 

 origin of, 133, 141, 142. 

 symbiosis in, 69, 92. 

 Pteridophyta, 107. 



Pterygioteuthis maculata, 88, 97. 

 Pupa, 82. 

 Purinocytes, 79. 

 Putrefaction, 77. 

 Pyrenoid, 77. 

 Pyrosoma, 87. 



Rabbit, 39. 



Rain, 144. 



Rathery, 19, 20, 48, 52. 



Reactions, 



chemical, 6, 15, 16, 27. 



protoplasmic, 2. 



to extrinsic factors, 6, 75. 



invading organisms, 92, 93. 

 physical agents, 28. 

 stains, 26. 

 temperature, 29. 



temporary, 92. 

 Reflector, 85, 88, 89. 

 Regaud, 15, 22, 42, 107. 

 Regeneration, 61. 

 Regeneration bodies, 90. 

 Reinke, 61, 62. 

 Relationships, 



bacterial, 63. 



chance, 64. 



symbiotic, 7, 67, 92, 94. 



(see symbiosis) 

 Reinfection, 72. 

 Renant, 21. 

 Reproduction, 58, 73. 

 Responses, 67. 



degenerative, 143. 



of microsymbionts, 113. 



morphologic, 67, 73, 76, 89. 



physiologic, 67, 71, 76, 89. 

 Retineal pigment, 22. 

 Rhaddocoela, 75. 

 Rickets, 144. 



Rickettsia bodies, 29, 83, 100. 

 Ring forms, 36, 48. 

 Rocky Mountain Spotted Fever, 



39, 53, 83, 100. 

 Romeis, 11, 47. 



