x GENERAL BIOLOGY 



III. THE LIFE PROCESS IN PLANT AND ANIMAL CELL, p. 82. Mat- 



ter, p. 82. Energy, p. 83. Protoplasm, p. 88. 



IV. SOME INTERMEDIATE AND UNDIFFERENTIATED FORMS, p. 91. i. 



Plants that lack chlorophyl, p. 92. Molds arid other fungi, 

 p. 95. Bacteria, p. 97. 2. The slime molds, p. 101. 3. 

 The flagellates, p. 104. 



IV. REPRODUCTION AMONG THE SIMPLER ORGANISMS, p. 109. Cell 

 division, p. 109. Sexual reproduction, p. 112. 



PRACTICAL EXERCISES. 



Study 8. The cell of Spirogyra and the protoplasm of Nitella, p. 60. 



Study 9. Observations on cell form and growth habit in algce, p. 67. 



Study 10. The structure and activities of Paramcecium, p. 72. 



Study ii. The specialized cell bodies of Stentor and Vorticella, p. 76. 



Study 12. Observations on cultures of yeast and molds, p. p6. 



Study 13. A few observations on bacteria, p. 100. 



Study 14. Observations on slime molds, p. 103. 



Study 15. A comparative examination of common -flagellates, p. 107. 



Study 16. Observations on reproduction among the simpler organisms, 

 p. 115. 



CHAPTER III. 

 ORGANIC EVOLUTION. 



I. THE PLANT SERIES, p. 1 1 8. Bryophytes, p. 118. Alternation 

 of generations, p. 124. Pteridophytes, p. 128. Spermato- 

 phytes, p. 142. 



II. THE ANIMAL SERIES, p. 156. The hydra, p. 157. The earth 

 worm, p. 163. The salamander, p. 179. Development, p. 

 193. Types of nurture, p. 214. The life process, p. 217. 

 Common features of development in plants and animals, p. 

 218. Systematic classification, p. 221. 



II. GENERAL EVOLUTIONARY PHENOMENA AS ILLUSTRATED IN 

 BRIEFER SERIES OF ORGANISMS, p. 222. i. Divergence and 

 convergence of development, p. 222. Homologies and analogies 

 p. 223. The veins in the wings of insects, p. 225. The serial 

 homology of the higher crustaceans, p. 230. Phylogeny, p. 

 236. Convergence, p. 243. 2. Progressive and regressive 

 development, p. 245. Palaeontology, p. 246. The persistence 

 of the unspecialized, p. 250. Regressive development, p. 

 251. 3 . The correspondence between ontogeny and phylogeny, 

 p. 255. Why evolutionary series? p. 264. 



