CONTENTS. 



Chaptee, I. Introdtjctory 



Chapter II. The Latjeentian System 



Notes : — Logan ox Structure oe Laurentian ; Hunt 



ON LlEE IN THE LaURENTIAN; LaURENTIAN GrAPHITE 



Western Laurentian ; Metamorphism . 



Chapter III. The History of a Discovery . 



Notes : — Logan on Discovery oe Eozoon, and on 

 Additional Specimens 



PAGE 



1 



24> 

 35 



48 



Chapter IY. What is Eozoon ? 59 



Notes: — Original Description; Note by Dr. Car- 

 penter ; Specimens from Long Lake ; Additional 



Structural Facts 76 



Chapter Y. Preservation of Eozoon .... 93 

 Notes: — Hunt on Mineralogy of Eozoon; Silici- 

 FiED Fossils in Silurian Limestones; Minerals 



associated with Eozoon ; Glauconites . , . 115 



Chapter YI. Contemporaries and Successors . . 127 



Notes : — On Stromatoporid^e ; Localities of Eozoon 165 



Chapter YII. Opponents and Objections . . . 169 

 Notes : — Objections and Eeplies ; Hunt on 



Chemical Objections; Eeply by Dr. Carpenter ISl? 



Chapter YIII. The Dawn-Animal as a Teacher in 



Science 207 



Appendix .......... 235 



Index • 237 



