The Ancient Life History of the Earth

Microscopic section of a calcareous breccia. 7. Microscopic section of White Chalk. 8. Organisms in Atlantic Ooze. 9. Crinoidal marble. 10. Piece of Nummulitic limestone, Pyramids. 11. Microscopic section of Foraminiferal limestone--Carboniferous, America. 12. Microscopic section of Lower Silurian limestone. 13. Microscopic section of oolitic limestone, Jurassic. 14. Microscopic section of oolitic limestone, Carboniferous. 15. Organisms in Barbadoes earth. 16. Organisms in Richmond earth. 17. Ideal section of the crust of the earth. 18. Unconformable junction of Chalk and Eocene rocks. 19. Erect trunk of a Sigillaria. 20. Diagrammatic section of the Laurentian rocks. 21. Microscopic section of Laurentian limestone. 22. Fragment of a mass of Eozoön Canadense. 23. Diagram illustrating the structure of Eozoön. 24. Microscopic section of Eozoön Canadense. 25. Nonionina and Gromia. 26. Group of shells of living Foraminifera. 27. Diagram