CONTENTS. xv 



CHAPTER XLI. 



Orders of Mammalia continued Characters and distribution in time 

 of Rodentia Leporidae Cavidse Hystricidse Castoridse 

 Muridas Dipodidse Myoxidas Sciuridae Cheiroptera Insec- 

 tivora Talpidae Soricidae Erinaceidae, .... 456-463 



CHAPTER XLII. 



Orders of Mammalia continued Characters and distribution in time 

 of the Quadrumana Strepsirhina Platyrhina Catarhina 

 Characters and distribution in time of the Bimana, . . 464-469 



PART IIL-PALEOBOTANY. 



CHAPTER XLIII. 



Palseobotany Divisions of the Vegetable Kingdom General Rela- 

 tions of Plants to time, ....... 473-477 



CHAPTER XLIV. 



Pre- Carboniferous Floras Cambrian Plants Silurian Plants De- 

 vonian Plants, ......... 477-484 



CHAPTER XLV. 



Carboniferous Plants Origin and structure of Coal Ferns Calamites 

 Calamodendron Lepidodendroids Sigillarioids Coniferse 

 Cycadacese Angiospermous Exogens Monocotyledons Per- 

 mian Plants, ......... 485-496 



CHAPTER XLVI. 



Floras of the Secondary and Tertiary Periods Triassic Plants- 

 Jurassic Plants Cretaceous Plants Eocene Plants Miocene 

 Plants Pliocene Plants, . . . . . . . 496-503 



PART IV.-HISTORICAL PALEONTOLOGY. 



CHAPTER XLVII. 



Historical Palaeontology Synopsis of the fossiliferous formations 

 Rocks of the Laurentian Period Life of the Period Rocks of 

 the Huronian Period Rocks of the Cambrian Period Lower 

 Cambrian Upper Cambrian Life of the Cambrian Period 

 Primordial Zone Skiddaw and Quebec Groups, . . 507-514 



CHAPTER XLVIII. 



Rocks of the Silurian Period Divisions of the Silurian Rocks in 



Britain In North America Life of the Silurian Period, . 515-520 



