190 



INDEX. 



Chromatin, 50. 

 Cilia, 81, 42. 



in Lumbricus, 142. 



in Pteris, 96. 

 Ciliary action, 31, 42. 

 Circulation of the blood, 124, 130. 



of protoplasm, 29. 

 Circulatory system, 127. 

 Claparede, 160. 

 Classification, 173. 



according to function, 178. 

 to structure, 178. 



table of, 180. 

 Claus, 179. 



Cleavage of the ovum, 51, 61, 147. 

 Clitellum, 121. 



functions of, 121, 145. 



microscopic structure of, 160. 

 Coagulation, 37. 

 Ccelenterata, 153, 180. 

 Ccelom, 123, 157. 

 Cohn, 23. 

 Collenchyma, 62. 

 Colorless plants, 167, 178. 

 Commissures, 136. 



Comparison of plant and animal, 165. 

 Conductivity, 110. 

 Consciousness, 6, 140. 

 Contractility, 32. 

 Contraction, muscular, 26. 

 Co ordination, 124, 139. 

 Co-ordinating system, 136. 

 Copulation, 145. 

 Cork. 48. 



Correlation of structure, 176. 

 Crop, 125. 

 CucurMta, 29. 



Cushion of prothallium, 93. 

 Cuticle, 156. 

 Cuvier, classification of, 177. 



Darwin, 104, 118. 

 Death, 110. 

 De Bary, 73, 101, 102. 

 Deutoplasm, 50. 

 Deutzia, 62. 

 Development, 51. 



general characteristics of, 153. 



of Lumbricus, 146. 



of Pteris, 98. 



Dialysis, 45. 

 Diatoms, 56. 

 Dichogamy, 97. 

 Differentiation, 13, 51. 



antero-posterior, 118. 



dorso-ventral, 118. 



in the development of Lumbricus, 

 148, 155. 



of Pteris, 100. 

 Digestion, 163, 166. 

 Dissepiments, 123. 



microscopic structure of, 159. 

 Distribution, 8. 

 Druery, 102. 

 Dujardin, 23. 



Earthworm, biology of, 117. 

 Ectoblast, 148, 152. 

 Efferent nerves, 138. 

 Egg, 49. 



Egg-laying, 145. 

 Electricity, 41, 47. 

 Embryo, 51. 



of Lumbricus, 150. 



of Pteris, 98. 

 Embryology, 8, 9. 



of Lumbricus, 146. 



of Pteris, 98. 

 Emulsion, 44, 163. 

 Endosporium, 93. 

 Energy, 32-34, 167, 178. 



sources of, in Lumbricus, 162. 



in Pteris, 107. 

 Entoblast, 148, 152. 

 Environment, 102, 166. 



adaptation to, 103, 161, 165. 



changes in, 104. 

 Epidermal system, 72, 73, 75. 

 Epidermis, 71, 74, 75. 



of the leaf, 86. 



Essential reproductive organs, 143. 

 Excretion, 105, 124, 165. 

 Excretory system, 132. 

 Exosporium, 93. 



Farlow, 102. 

 Fat, 18, 34, 44. 



digestion of, 163. 

 Fern, the biology of, 64. 



