Reactions to On the Origin of Species Saturday Review: argument confined to Geology, but has given me some perfectly just & severe raps on knuckles." In the third edition published on 30 April 1861, Darwin cited the "Saturday Review" article as reason to remove his calculation altogether. The December 1859 review in the British Unitarian "National Review" was written by Darwin's old friend William Carpenter, who was clear that only a world of "order, continuity, and progress" befitted an Omnipotent Deity and that "any theological objection" to a species of slug or a breed of dog deriving from a previous one was "simply absurd" dogma. He touched
Reactions to On the Origin of Species example and Ramsay's data in chapter 9 of "On the Origin of Species" to estimate that erosion of the Weald's layered dome of Lower Cretaceous rocks “must have required 306,662,400 years; or say three hundred million years“. The "necessary corrections" Darwin made to his drafts for the second edition of the "Origin" were based on comments from others, particularly Lyell, and added a caveat suggesting a faster rate of erosion of the Weald: "perhaps it would be safer to allow two or three inches per century, and this would reduce the number of years to one hundred and fifty or