Chapter VIII: The Dawn-Animal as a Teacher in Science 207

Appendix 235

Index 237

LIST OF ILLUSTRATIONS.

FULL PAGE ILLUSTRATIONS.
TO FACE
PAGE

I. Cape Trinity, from a Photograph (_Frontispiece_).

II. Map of the Laurentian Region on the River Ottawa 7

III. Weathered Specimen of Eozoon, from a Photograph 35

IV. Restoration of Eozoon 59

V. Nature-print of Eozoon 93

VI. Canals of Eozoon, Magnified, from Photographs 127

VII. Nature-print of Large Laminated Specimen 169

VIII. Eozoon With Chrysotile, etc. 207

WOODCUTS.

FIG. PAGE

1. General Section 9
2. Laurentian Hills 11
3. Section of Laurentian 13
4. Laurentian Map 16
5. Section at St. Pierre 22
6. Sketch of Rocks at St. Pierre 22
7. Eozoon from Burgess 36
8, 9. Eozoon from Calumet 39
10. Canals of Eozoon 41
11. Nummuline Wall 43
12. Amœba 60
13. Actinophrys 60
14. Entosolenia 62
15. Biloculina 62
16. Polystomella 62
17. Polymorphina 63
18. Archæospherinæ 67
19. Nummulites 73
20. Calcarina 73
21. Foraminiferal Rock-builders 75
21_a_. Casts of Cells of Eozoon 92
22. Modes of Mineralization 96
23. Silurian Organic Limestone 98
24. Wall of Eozoon Penetrated with Canals 98
25. Crinoid Infiltrated with Silicate 103
26. Shell Infiltrated with Silicate 104
27. Diagram of Proper Wall, etc. 106
28, 29. Casts of Canals 107
30. Eozoon from Tudor 111
31. Acervuline Variety of Eozoon 135
32, 33, 34. Archæospherinæ 137, 138
35. Annelid Burrows 140
36. Archæospherinæ 148
37. Eozoon Bavaricum 149
38, 39, 40. Archæocyathus 152, 153
41. Archæocyathus (Structure of) 154
42. Stromatopora 157
43. Stromatopora (Structure of) 158
44. Caunopora 159
45. Cœnostroma 160
46. Receptaculites 162
47, 48. Receptaculites (Structure of) 163
49. Laminæ of Eozoon 176

THE DAWN OF LIFE.