xu 



LIST OF ILLUSTRATIONS. 



FIG. 



14. Entosolenia. 



15. BiLOCULINA . 



16. polystomella 



17. polymoephina 



18. arch.eospherin.e 



19. nummulites . 



20. Calcarina . 



21. Foraminiferal Eock-builders 

 21a. Casts op Cells ojp Eozoon 



22. Modes of Mineralization . 



23. Silurian Organic Limestone 



24. Wall of Eozoon penetrated with Canals 



25. Crinoid Infiltrated with Silicate 



26. Shell Infiltrated with Silicate 



27. Diagram of Proper Wall, etc 



28. 29. Casts of Canals . 



30. Eozoon fro^i Tudor . 



31. AcERVULiNE Variety of Eozoon 



32. 33, 34. Arch^ospherin^ 



35. Annelid Burrows 



36. ARCHiEOSP BERING 



87. Eozoon Bavaricum 

 38, 39, 40. Arcii^ocyathus 



41. Arch^ocyatiius (Structure of) 



42. Stromatopora 



43. Stromatopora (Structure of) 



44. Caunopora .... 



45. Ccenostroma .... 



46. liECEPTACULITES . 



47. 48. Keceptaculites (Structure of) 

 49. Lamin.e of Eozoon 



PAGE 



G2 

 62 

 62 

 63 

 67 

 73 

 73 

 75 

 92 

 96 

 98 

 98 

 103 

 104 

 106 

 107 

 111 

 135 

 137, 138 

 140 

 148 

 149 

 152, 153 

 154 

 157 

 158 

 159 

 160 

 162 

 163 

 176 



