XVlll 



LIST OF ILLUSTRATIONS. 



FIG. 



8. Sternum and adjacent parts of Scaphiopus Jiolbrooki .... 



9. Sternum of Tadpole of Rana temporaria ...... 



10. Sternum of adult Rana temporaria ....... 



11. Metacarpus, carpus, and distal extremity of radius of Poehroiherium vihoni 



12. The same, less radius, with first phalanges of Procamelus occidentalis 



13. Skull of Protolahis transmontanus 



14. Skull of Procamelus occidentalis . 



15. Tooth of Globicephalus .... 



16. Tooth of Jaculus hudsonicus 



17. Tooth of Leploch(e7'us spectabilis. From Leidy 



18. Tooth of Rhinocerus, milk superior molar . 



19. Tooth of Achcenodon insolens 



20. Tooth of Hippopotamus amphibius. From Cuvier 



21. Tooth of Hyopotamu^ velaunus. From Blainville 

 2 1. Tooth of Hyopotamus americanus. From Leidy 



23. Tooth of Procamelus robustus. From Leidy 



24. Tooth of Merychyus major. From Leidy . 



25. Tooth of Tapirus ..... 



26. Tooth of Mastodon angustidois. From Cuvier 



27. Tooth of Mastodon americanus. From Cuvier 



28. Tooth of Dinotherium. From Cuvier 



29. Tooth of Elephas indicus. From Cuvier . 



30. Tooth of Microsyops elegans. From Leidy 



31. Tooth of Hyopsodus paulus. From Leidy . 



32. Tooth of Palceosyops kevidens. From Leidy 



33. Tooth of Ancldppodus riparius. From Leidy 



34. Tooth of Palceosyops vallidens. From Leidy 



35. Tooth of Pcdceotherium. From Cuvier 



36. Tooth of Hipposyus. From Leidy 



37. Tooth of Hipposyus more worn. From Leidy 



38. Tooth of Hypohippus. From Leidy . 



39. Tooth of Equus, superior molar. From Leidy 



40. Tooth of Equus, inferior molar. From Leidy 



41. Tooth of Baihmodon radians 



42. Tooth of Uintatherium robustum, superior molar. 



43. Tooth of Uintatherium. robustum^ inferior molar. 



44. Periptychus rhabdodon, part of posterior foot 



45. Coryphodon elcphantopus, right fore foot, one third natural size 



46. Coryphodon elephantopus^ right posterior foot . 



47. Phenacodus primcevus, right anterior foot, one third natural size, 



48. Phenacodm primcevus^ left posterior foot, one third natural size 



49. Homo sapiens^ left anterior foot (hand), one third natural size . 



50. Homo sapiens., left posterior foot, one third natural size 



51. Phenacodus primcevus Cope, skull, one third natural size, from below 



52. Simia satyrus, section of skull of adult ..... 

 52a. Simia satyrus, section of skull of young ...... 



53. Homo sapiens, infant at term . . ..... 



From Leidy 

 From Leidy 



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