Finest Tubuli filled with Dolomite 158 38. Arrangement of Canals 159 39-41. Finest Tubuli 160-2 42. Canals after Möbius 163 43. Stromatocerium 172 44. Stromatopora 173 45. Cœnostroma 174 46. Recent Protozoa 176 47. Fragmental Eozoon 183 48, 49. Nummulites and Calcarina 186 50, 51. Archæospherinæ 190, 200 52. Acervuline Eozoon 205 53, 54. Archæospherinæ 205, 208 55. Ditto, Finland 212 56. Eozoon Bavaricum 213 57. Archæozoon 215 58. Restoration of Eozoon 230 59. Eozoon in Different States 237 60. Nature-print of Large Specimen _To face_ 296 [Illustration: _Walker & Boutall SCt_ Grenville Series on the Ottawa River (17 miles to an inch). _From Logan's Original Map of 1865._] _THE CHAIN OF LIFE TRACED BACKWARD IN GEOLOGICAL TIME_ GEOLOGICAL CHRONOLOGY OF LIFE. _After Prof. C. A. White._ =Column Key=--_Using First Letter_ ---------------------------------------- Invertebrates. Vertebrates. Plants. -------------- ------------- --------- Protozoa Ganoid Fishes Algæ Corals, etc. Telios Fishes Land Cryptogs Echinoids Batrachians Phænogams Worms Reptiles Mollusks Dinosaurs Arthropods Birds Insects Marsupials Land Snails Placentals Humans