Index. 



281 



Cell-wall of cell of Rhododendron petal, 



14, IS- 

 Tradescantiavirginiana,^. 



yeast, 23, 24, 25, 26, 28, 31. 



chemical characteristics of, 10, 55. 



permeability of, 10. 



physical characteristics of, 9. 



tenacity of, 10, 19, 25. 

 Cellulose, 10, 22, 36. 

 Characters, acquired, 260 



differentiating, 260. 



dominant, 262. 



inherited, 260. 



recessive, 262. 



Chemotaxis ( = chemotropism), 93. 



of Mucor, 93. 



sperms, 130, 139, 166. 

 Chlamydomonas. Lectures V.-VI., 35-48 



(Fig. 7)- 



asexual reproduction of, 39. 



carbon, source of, for, 49. 



cell-wall of, 36, 39. 



chlorophyll of, 37. 



chloroplast of, 37. 



chromatophore of, 37. 



cilia of, 36, 39. 



contractile vacuoles of, 37, 51. 



food of, 41. 



gametes of, 39. 



holophytic, 49. 

 irritability of, 38. 



motion of, 35, 38. 



nitrogen for, source of, 49. 



nucleus of, 37, 39. 



oxygen, evolution of, by, 41. 



photosynthesis in, 41-47. 



protoplasm of, 35. 



pyrenoid of, 37. 



response in, 38. 



sexual reproduction of, 39. 



starch in, 37, 41, 50. 



stigma of, 37. 



spontaneity of, 38. 



source of carbon for, 41. 

 Chlorophyll in colloidal state, 46. 



contains magnesium, 46. 



properties of, 45, 46, 47. 



a and , 46. 



solution of, 45. 



purveys solar energy to living beings, 



Si- 

 Chloroplast, function of, 46, 47. 



of Chlamydomonas, 37. 



Elodea canadensis , 42, 43. 



of Fucus, 105. 



Selaginella, 172. 



Spirogyra, 68. 



Vaucheria, 33. 



Volvox, 76. 

 Chromatin, 251, 253. 



Chromatin, hereditary substance or 



germ-plasm, m, 254. 

 equal amounts in sperm and ovum, 



in, 254. 



Chromatophore, 37, 231. 

 Chromomeres, 251, 256, 257. 



division of, 252, 254, 255, 256. 

 Chromosomes, 251, 253, 254, 255. 



cleavage of, 252, 254, 255. 

 Circulation of nitrogen, 65, 66, 67. 

 Classification, evidence on evolution, 271. 

 Coagulation, 16, 18, 22, 29, 31. 

 Coenocyte, 85, 95, 97, 237, 238, 248. 

 Co-enzyme, 30, 73. 



Cohesion- Theory of the ascent of water, 



156, 224 et seqq. 

 Collenchyma, 243. 

 Colloidal state, 19, 20. 



enzymes in, 28, 29. 



Colloids, 19, 20. 



particles of, 20, 21. 



past history of, 22. 



produce very little osmotic pressure, 



surface of. 20, 21. [50. 

 Colonies of bacteria, 61. 



Columella of Mucor, 94. 



Funaria, 141. 



Combustion of carbohydrates, 50. 



heat of, 32, 50. 

 Companion-cells, 220. 

 Conceptacles of Fucus, 107. 

 Conducting tracts (vascular bundles). 



development of, in Pinus, 186. 



of Aspidium, 147, 148, 149, 150, 



"closed," 218. [151. 



in embryo, 250. 



of Pinus, 182, 183. 



Ranunculus, 217 et seqq. 



root of, in Scilla, 241. 



Selaginella, 173. 



subdivision of, 227. 



"open," 218. 



paths of, in stem of Aspidium, 148. 



in stem of Selaginella, 173. 



_ _ _ Pinus, 182 et seqq. 



Ranunculus, 217 et 



seqq. 



. Scilla, 243, 244. 



Dicotyledons and Mono- 

 cotyledons, 244. 



. leaves of, Dicotyledons and 



Monocotyledons, 245. 

 Cone of Pinus, (see seed-cone and 



pollen-cone), 199, 204. 

 Selaginella, 173, 213. 



and of Pinus compared, 213. 



Congo Red a colloid, 19. 

 Connective, 231. 



Contractile vacuoles, eliminate waste 

 products, 51. 



