"Silurian period" Quotes from Famous Books
... Gergovia. Eocene Volcanic Rocks of Monte Bolca. Trap of Cretaceous Period. Oolitic Period. Triassic Period. Permian Period. Carboniferous Period. Erect Trees buried in Volcanic Ash in the Island of Arran. Old Red Sandstone Period. Silurian Period. Cambrian Period. Laurentian ... — The Student's Elements of Geology • Sir Charles Lyell
... of, possibly millions of years before Neolithic man had even a back cave to offer with the remains of last night's supper for the cockroach of the period to enjoy. His discovery established the fact that in the Silurian period there were insects, though, as the only piece of his remains found was a wing, there has been room for dispute as to the exact species. Mr. Goss in his preface to the second edition of his book notes that what is probably a still older insect has ... — The Naturalist on the Thames • C. J. Cornish
... wisely and boldly classes it among the "exact sciences," whose subject-matter is "flint instruments, incised bones, and a few rare specimens of human skulls and skeletons, the meaning of which has to be deciphered by skilled experts." [79] "The conclusions of geology," up to the Silurian period, "are approximate facts, ... — The Faith of the Millions (2nd series) • George Tyrrell |