Page:Evolution of Life (Henry Cadwalader Chapman, 1873).djvu/258

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192
INDEX.
  1. Reproductive organs, development of, 129.
  2. Reptiles, affinities, 63.
  3. classification of, 62.
  4. development of, 131.
  5. growth of, 61.
  6. Rhabdocœla, 35.
  7. Rhea, 66.
  8. Rhinoceros, 9, 139.
  9. Rhizocarpæ, 94.
  10. Riccia, 89.
  11. Rocks, age of, no.
  12. aqueous, 108.
  13. Azoic, 109.
  14. classification of, 124.
  15. Paleozoic, 109.
  16. Plutonic, 108.
  17. study of, 107.
  18. Rotatoria, 36.
  19. structure of, 38.
  20. Ruminants, 148.
  21. developments of, 139.
  22. stomachs of, 73.
  23. Sagitta, 39.
  24. Salamander, 59, 61.
  25. Salmon, 57.
  26. Salvinia, 96, 98.
  27. Sandstone, New Red, 117.
  28. Saprolegnia, 85.
  29. Sargassum, 81.
  30. Saurophalli, 67.
  31. Sauropsida, 71.
  32. Savages, intelligence of, 167.
  33. life of, 155, 168.
  34. Schoharie Grit, 109.
  35. Scolecida, 34.
  36. Scotch fir, 144.
  37. Sea-cow, 70.
  38. Sea-cucumbers, 42.
  39. Sea-urchins, 42.
  40. Sea-weed, red, 82.
  41. Sebright, Sir John, 149.
  42. Secondary Age, 109.
  43. Selaginella, 95.
  44. leaves of, 99.
  45. Selection, artificial, 149.
  46. sexual, 153.
  47. Sepals, 97.
  48. Sepidæ, 62.
  49. Sertularia, 28.
  50. Sex, difference in, 152.
  51. Sexual selection, 153.
  52. Shad, 57.
  53. Sharks, 56.
  54. Sharks, fossil 115, 119.
  55. Sheep, 139.
  56. Sigillariæ 116.
  57. Silurian formation, 113.
  58. Sipunculus, 36.
  59. Siredon, 60, 154.
  60. Siren, 59.
  61. Skeleton, modifications of, 157.
  62. Skin, development of, 129.
  63. Skull, characters of, 170.
  64. Neanderthal, 173.
  65. structure of, 53.
  66. Sloth, 70, 142.
  67. organization of, 137.
  68. peculiarities of, 76.
  69. Smuts, 83.
  70. Snake, relationship of, 62.
  71. Soft Worms, vessels of, 36.
  72. Sounds of Birds and Insects, 152.
  73. Speech, articulate, 171.
  74. growth of, 172.
  75. Spencer, Herbert, 10, 11.
  76. Spener, 62.
  77. Sphrerocarpus, 89.
  78. Spiders, 44.
  79. Spines, production of, 152.
  80. Spirobranchiee, 46.
  81. Spirogyra, 80.
  82. Sponge, 23.
  83. Spontaneous generation, meaning of, 21.
  84. Sporangium, 90.
  85. Sporendonema, 86.
  86. Sporocarps, 94.
  87. Stages, transitional, 13.
  88. Stamens, 97.
  89. Star-fish, description of, 40.
  90. origin of, 41.
  91. Stigma, 97.
  92. Stomata, 89.
  93. St. Cuthbert's beads, 42, 112.
  94. St. Hilaire, 14.
  95. Structures, transitory, 132, 134.
  96. Struggle for existence, 143.
  97. examples of, 144, 145.
  98. Sturgeon, 56, 115.
  99. Style, 97.
  100. Stylospores, 84.
  101. Survival of the fittest, 149.
  102. Tænia, 35.
  103. Tape-worm, history of, 36.
  104. Tapir, 9, 139.
  105. Tardigrada, 38.
  106. Teeth, 170.
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