John Ray
1713 Three Physico-theological discourses. This is the 3rd edition of Miscellaneous discourses, the last by Ray before his death, and delayed in publication. Its main importance is that Ray recanted his former acceptance of fossils, apparently because he was theologically troubled by the implications of extinction.p37 Robert Hooke, like Nicolas Steno, was in no doubt about the biological origin of fossils. Hooke made the point that some fossils were no longer living, for example Ammonites: this was the source of Ray's concern.p327