INDEX. 



Absorption of food, 41. 



Acquired characters, inherit- 

 ance of, 188, 197. 



variations, 183. 



Amoeba, 89. 



Anatomical evidence for evolu- 

 tion, 164. 



Aquacity, 96. 



Arm compared with wing, 166. 



Aristotle, 9. 



Assimilation, 97, 144, 172, 176, 

 202. 



Asters of dividing cells, 116. 



B. 



Barry, 77, 78. 



Bathybias, 101. 



Biology a new science, 9,14, 25. 



Blood, 47, 48, 49, 85, 89. 



Blood-vessels, 47, 48. 



Body as a machine, 32, 36, 62. 



Bone cells, 85. 



Building of the living machine, 



152, 155, 157, 159, 192, 201, 



206. 



C. 



Cartilage cells, 84. 



Cell as a machine, 147, 149. 



description of, 85. 



division, 113, 114, 120. 



Cell, discovery of, 72. 



doctrine, 75. 



substance, 80, 145. 



Cells, 70, 101, 103, 138, 139. 

 Cellular structure of organ- 

 isms, 80. 

 Cell waU, 79, 88. 

 Centrosome, 112, 114, 115, 



119, 122, 123, 129. 

 Challenger expedition, 100. 

 Chemical evolution, 205. 

 Chemical theory of vitality, 



24 ; of life, 94, 136. 

 Chemism or mechanism, 71, 



202. 

 Chemistry of digestion, 38, 



39 ; of protoplasm, 92 ; of 



respiration, 50. 

 Chromatin, 110, 112, 114, 120, 



172, 176. 

 Chromosomes, 115, 116, 119, 



123, 127, 129, 132, 175. 

 Circulation, 46. 

 Colonies of cells, 102. 

 Comparison of the body and a 



machine, 34. 

 Congenital variations, 182, 



184, 187; inheritance of, 



188. 



Connective-tissue cells, 86. 

 Conservation of energy, 16, 27. 

 Consciousness as a factor in 



machine building, 198. 

 Constructive chemical pro- 

 cesses, 63, 65, 66, 145, 

 Continuity of germ plasm, 



178. 



