INDEX OF PRINCIPAL TOPICS. 



499 



Pleistocene, Tabular View of, 472. 



Polygenesis of Species, 418. 



Predetermination in Nature, 329. 



Primitive Rocks, 16. 



Protozoa, their Place in Nature, 152. 



Pseudo-Fucoids, 318. 



Pupa Vetusta, 288. 



Races of Early Men, 474. 

 Rill Marks, 317. 



Scorpions, Carboniferous, 295. 



Sigillariic, Erect, 276. 



Sorde, Cave of, 476. 



Species, Permanence of, 87, 1 8 3. 



Origin of, 418. 



Sponges in Cambro-Silurian, 46. 

 Spore-cases in Coal, 234. 

 Stigmaria, 246. 

 Stone Age in America, 464. 



Terraces of Lower St Lawrence, 

 346. 



Tides of the Bay of Fundy, 312. 



Time, Geological, 416. 



Tracks of Animals, 51. 



Trees, Erect, with Animal Remains, 



276. 

 Tuckerman's Ravine, 427. 



Underclays, their Origin and 

 Nature, 236. 



Vegetable Life, the Earliest, 338. 

 Vegetable Kingdom, its History, 



202. 

 Vertebrates, History ot, 183. 

 Vision of Creation, 90. 



Worlds, the Making of, 9, 14. 

 Worm Tracks, 318. 

 White Mountains, 426. 



Zoological Regions, 405. 



