294 



INDEX. 



Endogens, (to produce within,) the, 



122, 132. 



Equistaceae, (horsetails,) the, 113. 

 Evolution, import of the term, 40. 

 not a modern science, 41. 

 Agassiz on, 41. 



Exogens, (to .produce outward,) the, 

 137, 160: 



Family, or tribe, a, what, 74. 



Ferns, 114. 



Fishes, 245. 



Functional character of organs, 77. 



Fungi, 103, 105, 106. 



Gasteropoda, the, 192, 2OI. 

 Generations, alternation of, 48. 



three modes of, 49. 

 Genus, what, 75. 

 Ginger family, the, 128. 

 Graminese, (grass family,) 124. 

 Grammataphora, the, 95. 

 Gregarinidse, the, (parasitic plants,) 



162. 



Growth an essential property of bio- 

 plasm, 30. 



Haeckel, on life, 12. 

 Heliopelta, (sun-shield,) the, 95. 

 Hepaticre, (liverworts,) the, 112. 

 Homologous, import of the term, 76. 

 Horsetails, the, 109. 

 Human type, the, 281. 

 Hydra, why so called, 172. 

 Hydrozoa, the, 171. 



Ideas, relations of, 287. 



Imagination, the, faculty of, 288. 



Inanimate things incapable of pro- 

 ducing animate, 19. 



Infusoria, the, 14, 16, 23, 24, 164. 



Insecta, the, 227. 



Invertebrates, nervous system of, 

 244. 



Iridacese, (iris family,) the, 128. 



Isthmia nervosa, the, 95. 



Judgment, the, faculty of, 288. 



Lamellibranchiata, the, 192, 196. 

 Leucippus, teachings of, 10. 

 Lichens, the, 101. 

 Life, various definitions of, 12. 

 the result of power, 21. 



Light, influence and action of, 54. 

 Lily family, the, 130. 

 Liverworts, (hepaticee,) the, 109, 112 

 Long-wings, the, 260. 



Man, 281. 



antiquity of, 290. 



unity of, 289. 



varieties of, 290. 

 Mammalia, the. 267. 

 Marantaceoe, (arrowroot family,) the, 



128. 



Marsipobranchs, the, 247. 

 Marsupiala, (pouch-bearers,) the. 



269. 



Memory, 286. 

 Molecular movement, what, 29. 



coalescence, what, 56. 

 Mollusca, the, 192. 

 Mollusks, construction of the, 78. 

 Monera, the, 162. 

 Monism, the theory of, 10, 17. 

 Morphology, import of term, 9. 

 Mosses, u 6. 



Navicula, the, 96. 



Nervous system of vertebrates, 242. 



of invertebrates, 244. 

 Nostocs, what, 91. 

 Nutrition essential to life, 31. 



Orchids, the, 129. 

 Order, an, what, 74. 

 Organic nature, unity of, 73. 

 Oscillatoria, what, 01. 

 Osmotic action, what, 55. 



Palmellacece, family of the, 87. 

 Palmogloea macrococca, the, 84. 

 Parentage, sexual and non-sexual, 



43- 

 Park, Mungo, striking experience 



of, 120. 



Partheno-genesis, what, 49. 

 Perception, faculty of, 286. 

 Pharyngobranchs, order of, 247. 

 Physiology, import of the term, 9. 

 Pigeon, 263. 



Pine-apple family, the, 128. 

 Plato, teachings of, u. 

 Polyzoa, (sea-moss,) the, 192. 

 Primitive forms of life, simple, 27. 

 Protococcus pluvialis, the, 85. 

 Protophytes, life-history of the, 84 



