Adam Sedgwick Quotes
Among the older records, we find chapter after chapter of which we can read the characters, and make out their meaning: and as we approach the period of man's creation, our book becomes more clear, and nature seems to speak to us in language so like our own, that we easily comprehend it. But just as we begin to enter on the history of physical changes going on before our eyes, and in which we ourselves bear a part, our chronicle seems to fail us-a leaf has been torn out from nature's record, and the succession of events is almost hidden from our eyes.
Sedgwick, Adam. "Address to the Geological Society, Delivered on the Evening of the 18th of February 1831." Proceedings of the Geological Society of London, vol. 1, 1831, p. 302.
Adam Sedgwick was a British geologist and priest, one of the founders of modern geology. He proposed the Cambrian and Devonian period of the geological timescale. Based on work which he did on Welsh rock strata, he proposed the Cambrian period in 1835, in a joint publication in which Roderick Murchison also proposed the Silurian period. Later in 1840, to resolve what later became known as the Great Devonian Controversy about rocks near the boundary between the Silurian and Carboniferous periods, he and Murchison proposed the Devonian period.