The Story of Our Continent: A Reader in the Geography and Geology of North America, for the Use of Schools

abundant afford ancient Arctic Asia Atlantic coast basin beds Carboniferous caverns central character civilization climate coal considerable coral Cordilleran district Cordilleras creatures Cretaceous crinoids crops deposits earth earth's history east eastern effect elevations Europe European extending fact fertile field Florida flow forests geological geological ages glacial period glaciers greater Greenland growth Gulf of Mexico Gulf Stream height hundred important Indians islands Isthmus of Darien known lakes land Laurentian Laurentian Mountains Lawrence lime limestone materials metals miles mineral Mississippi Valley mountain system nature North America northern northward Nova Scotia occupied ocean Ohio Old World peculiar peninsula portion present probably rainfall reefs region ridges rivers rocks Rocky Mountains sand savages settlements shape shore Silurian soil southern southward species strata substances surface tains Text & Notes thousand feet tion trees Triassic tropical United warm western