 In a series of letters, Collins discussed Clarke’s review of his book with his long time friend and collaborator Pierre Desmaizeaux. He had written up a reply. Eventually, however, Collins concluded that Clarke had been threatening him with civil action, and that to reply would provide Clarke with the opportunity to do so (Dybikowski 2011: 260–1, 269 and 281). Consequently, Collins made no reply to Clarke’s review.