INDEX OF SUBJECTS IN GENEEAL GEOLOGY ILLUSTRATED 

 OR DISCUSSED IN THIS VOLUME. 



Albertite, Origin of, . 

 Antholithes, Nature and Affinities of, 

 Calamites, Structure and Affinities of, 

 Carboniferous System, Structure of, 

 Coal, how Accumulated, . . 

 Structure of, . . . . 



Colour of Sediments, . 

 Concretionary Structures, 

 Cycles in Geological Time, 

 Cordaites, Nature and Affinities of, 

 Copper, Native, Origin of, . 

 Erect Trees, Preservation of, . 

 Footprints in Aqueous Deposits, 

 Frost, Action of, . 

 Forest Fires, .... 

 Flora of the Coal Period, 



of the Devonian Period, 



Gold, Origin of, and Mode of Occurrence, 



Glacial Action, 



Gypsum, Origin of, ... 



Hurouian Period, .... 

 Ice, Transporting Power of, . 

 Insects of the Coal Period, . 



of the Devonian Period, 



Life in the Coal Lagoons and Estuaries, 

 Life in the Carboniferous Sea, 

 Lepidophloios, Nature and Affinities, . 

 Lepidodendron, Nature and Affinities, 

 Laurentian Period, ...... 



Lower Silurian, Peculiarities in Eastern America, 

 Megaphyton, Nature and Affinities of, 

 Metamorphism, ...... 



Modern Alluvia, ...... 



Pre-historic Man, 



Permian, Absence of, in Eastern America, . 



Plaster-pits, Origin of, 



Pulmonates of the Coal Period, . . . 



Primordial Fauna, 



Rain-marks, ....... 



Reptiles of the Coal Period, .... 



Sand Dunes, ....... 



Submarine Forests, ...... 



Sigillaria, Nature and Affinities of, . 



Sternbergia, Nature of, 



Stigmaria, Nature of, ..... . 



Triassic Period, Conditions of, ... 



Trigonocarpum, Nature and Affinities of, 

 Tracks of Worms and Crustaceans, 

 Upper Silurian of Eastern America, 



Page 



231 



460 



194, 441 



128, 147, 156 



131, 138, 201 



461 



24, 623 



676 



135 



456 



107 



28, 187, 191 



26 



64 



47 



421 



531 



624 



65 



261, 391 



659 



64 

 386 

 523 

 202 

 254, 285 

 456 

 450 

 662 

 620, 637 

 449 

 610 

 21 

 41 

 125 

 393 

 383 

 642 

 . 26, 410 

 353 

 36 

 28 

 430 

 424 

 179, 436 

 86 

 459 

 256, 410 

 411,572, 610 



