Eventually, Henry Morris agreed to be Whitcomb's collaborator for the scientific portions of the book.
At the 1953 ASA meeting, Whitcomb had been impressed by a presentation of Henry M.
In defense of their work, Whitcomb and Morris noted that the founders of modern geological science were, like them, non-specialists: Charles Lyell (a lawyer), William Smith (a surveyor), James Hutton (a doctor and gentleman farmer), John Playfair (a mathematician), as well as a number of clergymen. Gordin has called The Genesis Flood "one of postwar America's most culturally significant works about the natural world.
It was read by hundreds of thousands, spawned its own research institutes, and remains absolutely rejected by every mainstream biologist and geologist." An old-earth creationist book, written specifically to challenge young-earth geological theories, called the late twentieth-century revival of interest in flood geology "astonishing and perplexing," especially "in the face of increasing geologic and astronomical evidence for the vast antiquity of the Earth and the universe." Again, in the words of a critic, Arthur Mc Calla, the growth in young-earth creationism occurred not because modern fundamentalists were more ignorant than in previous generations but because young-earth creationism "better defended a plain-sense reading of the inerrant Bible than did the old-Earth creationism of Ramm and the earlier Fundamentalists....
Several dozen Christian magazines reviewed the book and generally praised its defense of the scriptural account of the Flood, although few seemed to understand that accepting Whitcomb and Morris meant rejecting the day-age and gap theories.
Christianity Today, the most important evangelical magazine of the period, published a tepid review that did not address issues raised by the book but instead criticized the authors for using secondary sources and taking arguments out of context.