224 



INDEX. 



Strata identified by organic remains, 



187 ; thickness of, 52. 

 Swan, webbed feet of the, 34. 

 Swansea, early human remains at, 48. 

 Swimming of the marine races, 33. 

 movements in animals, 33. 



T. /' 

 Table of comparison of irVing species 



with fossil, 55. 

 Table of comparison of Irving genera 



with fossil, 56. 



Table of comparison of living Mol- 

 luscous animals and those of the 

 ancient strata, 58. 



Table of Temperature on the Earth, 

 157. 



Teleosaurus, propulsion of the, 35. 



Temperature the limit of the ranges 

 of life, 12. 



Terebratula, 23, 32, 92. 



Teredines destroy ships, 36 ; in drift- 

 wood, 37. 



Thallogens, 27. 



Time, geological scale of, 51. 



Trichoda anas, propulsive organs, 36. 



Trigonia, 96, 172. 



Trigonocarpum, 144. 



Trilobite, eyes of, 10. 



Triton, motion of the, 34. 



Tunicata, 91. 



Turt!* paddles of the, 34. 



Types of life structure, 25. 



U. 



Uniformitarian hypothesis of the age 

 of the globe's crust, 124. 



Unio, foot of, 36. 



Una, propulsive organs of, 35. 



f 



V. 



Velella, 33. 



Vertebrata, 27 ; swimming of, 33. 

 Vespertilionidae, skin of, 40. 

 "Vestiges of Creation," the author's 



hypothesis of development, 188. 

 Volvox, 209. 



W. 



Waldheimia australis, 23. 

 Wales, Lingula beds, 52. 

 Wales, probable age of coal, &c., in, 



134. 

 Warmth of ancient and modern times, 



147. 



Watson on British Plants, 13. 

 Wealden deposits, probable age of, 



128. 



Wenlock group, 75. 

 Westbury Cliff, intermixture of land. 



plants, insects, and sea-shells, 109. 

 Westwood, Fossil Insects, 117. 

 Whale, fins of the, 34. 

 pelvic bones, 43. 

 Woodward's Natural History of the 



Earth, 178. 



on Mollusca, 23. 



Wiirtemburg, the Trias of, 118. 



Z. 



Zamioid Plants, 145. 

 Zoophyta, 85. 



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