"Pandas" was followed in 1991 by "Darwin on Trial", a neo-creationist polemic by Phillip E. Johnson, that is regarded as a central text of the movement. "Darwin on Trial" mentioned "Pandas" as "'creationist' only in the sense that it juxtaposes a paradigm of 'intelligent design' with the dominant paradigm of (naturalistic) evolution," but his use of the term as a focus for his wedge strategy promoting "theistic realism" came later. The book was reviewed by evolutionary biologist Stephen Jay Gould for "Scientific American" in July 1992, concluding that the book contains "...no weighing of evidence, no careful reading of literature on all sides, no full citation of sources (the book does not even contain a bibliography) and occasional use of scientific literature only to score rhetorical points." Gould's review led to the formation in 1992 or 1993 of an 'Ad Hoc Origins Committee' of Johnson's supporters, which wrote a letter, circulated to thousands of university professors, defending the book. Among the 39 signatories were nine who later became members of the Center for the Renewal of Science and Culture (CRSC).