LIST OF ILLUSTRATIONS. 



PLATES. 



Facing page. 



1. Skulls of Triceratops 108 



2. Skulls of Triceratops 108 



3. Brain casts of Triceratops 108 



4. Isocrinus hvighti Springer 190 



5. Skeleton of Toxochelys stenopora 196 



6. Map of Quarry 13, near Como, Wyoming 304 



7. Anterior portion of skull of Camplosaurus amplus 306 



8. Posterior part of skull of Camplosaurus amplus 308 



9. Posterior part of skull of Caynptosatirus amplus 310 



10. Posterior part of skull of Camptosaiirus dispar 312 



11. Occipital region of skull of Camplosaurus dispar 314 



12. Neck and part of skull of Camplosaurus dispar 316 



13. Sacrum of Camplosaurus dispar 318 



14 . Ilia of three species of Camplosaurus 320 



15. Pelvic arch of Camplosaurus dispar 322 



16. Pelvic arch of Camplosaurus viedius 324 



17. Right hind foot of Camplosaurus cmplus 326 



18. Restoration of Camplosaurus dispar 328 



19. Mounted skeleton of Camplosaurus nanus 330 



20. Section of Jurassic exposures, near Medicine Bov,-, Wyomina- 332 



21 . Tibetan rosary of shell beads 360 



22. Tibetan and Mohammedan rosaries 360 



23. Chinese official Su-chu 360 



24. Chinese official Su-chu 360 



25. Japanese rosaries 360 



26. Japanese rosaries 360 



27 . Mohammedan rosaries 360 



28. Roman ( 'atholic rosaries 360 



29. Roman Catholic rosaries 360 



30. Roman Catholic rosaries 360 



31 . A new species of leather-back turtle 374 



32 . Two slugs of the genus Veronicella 384 



33. A new genus of Arenaceous Foramin if era . '. 424 



34. Skins of the three forms of Gymnura 456 



35. Skulls of the three forms of Gymnura 456 



36. Skulls of the genera Ilylomys podogyn it lira 456 



37. External appearance of Podogym, urr and Ilylomys 456 



38. Dorsal view of Dadylohalus armatiis 459 



39. Skulls of clawless otters 492 



40. Thorax and base of wing of mayflies 596 



XI 



