Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 217
e of the chalk itself. I thinkyou will now allow that I did not overstate my casewhen I asserted that we have as strong grounds forbelieving that all the vast area of dry land at presentoccupied by the chalk was once at the bottom of thesea, as we have for any matter of history whatever;while there… … On a Piece of Chalk 189 or less completely covered by a deep sea, was of consid-erable duration. We have already seen that the chalk is, in places,more than a thousand feet thick. I think you willagree with me that it must have taken some time forthe skeletons of the animalcules of a hundredth of…
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