170 



INDEX 



Symbiote, 23, 25, 64. 

 Symbiont, 7. 



action of glycerine on, 73. 



algal, 69, 93, 94. 



bacterial, 63, 71. 

 apparent scarcity of, 84. 



chemical constitution of, 100. 



definitive, 68, 72. 



digestion of, 70. 



distribution of, 72, 73. 



extracellular, 90. 



host, 63. 



independence of, 100, 135. 



localization of, 73. 



luminiferous, 87, 96, 101. 



multicellular, 62. 



migration of, 81. 



number of, 73. 



physiological dependence of, 62. 



prototactic properties of, 136. 



reactions, 65. 



regulation of, 80. 



relative, 63, 89. 



responses of, 66, 77, 123. 



spontaneous expulsion of, 71. 



transmission of, 65, 73, 76, 80, 

 81, 91, 95, 97, 111. 



uric acid-consuming, 76. 

 Symbionticism, 8, 9, 11, 23, 58, 

 62, 63, 65, 68, 69, 98, 104, 115, 

 131. 



evidence of, 58, 145. 



in origin of species, 104. 

 Symbiosis, 



absolute, 60, 62, 96. 



algal, 69. 



bacterial, 69. 



bacteriological, 62, 132. 



choice in, 64. 



classification, 60, 62. 



degree of, 67. 



development of, 65, 144. 



extracellular, 60, 62, 113. 



facultative, 62. 



incomplete, 60, 62. 



Symbiosis — continued. 



intimacy of, 73. 



intracellular, 60, 62, 113, 146. 



macrosymbiosis, 62. 



microsymbiosis, 67. 



obligate, 62, 76. 



stages of, 95, 96. 



variations of, 67. 

 Symbiotic complex, 65, 66. 

 Symplasm, 49, 59, 60, 61, 136, 137. 

 Syncytium, 61. 



Takagi, 13, 42, 46. 



Tapetum, 88. 



Technique, 27, 33. 



Temperature, 59, 70, 131, 145. 



Tentacles, 72. 



Thomson, 64. 



Thyroid gland, 43, 46, 47. 



secretion of, 22. 

 Ticks, 82. 

 Tissue, 



abnormal, 47. 



adult, 35. 



cultures, 14. 



fetal, 31, 32. 



neoplastic, 55. 



normal activity of, 139. 



of new-born, 31, 32. 



pathological, 47. 



reactions to forces, 130. 



reactions to hormones, 130. 



smears, 28. 

 Torraca, 22, 47. 

 Toxicity, 73. 

 Trachea, 86. 



Tracheal respiratory system, 85. 

 Tracheal tubes, 82, 87. 

 Transmission, 



hereditary, 70. 



passive, 73. 

 Trojan, 77. 

 Trypsin, 140. 

 Tryptophane, 34, 50. 

 Tuberculosis, surgical, 144. 



