LIST OF ILLUSTRATIONS. 



PAOl 



IDEAL SECTIONS ILLUSTRATING THE GENESIS or THE EARTH 8 



AMERICA IN THE LAURENTIAN PERIOD 18 



EOZOON OANADENSE . . 24 



LIFE IN THE PRIMORDIAL AGE . . , . .40 

 ORGANIC LIMESTONE OF THE SILURIAN . . . .63 

 LIFE IN THE SILURIAN. ...*... 66 



LIFE IN THE DEVONIAN 88 



VEGETATION OF THE DEVONIAN 103 



CARBONIFEROUS PLANTS 126 



OLDEST LAND SNAILS . . . . ,,139 

 CARBONIFEROUS REPTILES . . . . . .146 

 FOLDINGS OF THE CRUST IN THE PERMIAN PERIOD . .162 

 CURVES OF ELEVATION AND DEPRESSION . . . .179 

 CULMINATION OP TYPES OF PALAEOZOIC ANIMALS . . .183 



LAND ANIMALS OF THE MESOZOIC 194 



AQUATIC ANIMALS OF THE MESOZOIC . . . .219 



FORAMINIFERAL EOCK-BUILDERS 243 



MIOCENE MAMMALS 253 



BRITAIN IN THE POST-PLIOCEN* .30] 



