found: Google Books, via WWW, Sept. 10, 2019:Pollard, R.T. Dan Taylor (1738-1816). Baptist leader and pioneering Evangelical, 2018, p. 172 (Agnostos; Rev. Andrew Fuller; author of Reality and efficacy of divine grace, 1790; Agnostos had been widely considered to be a friend and admirer of Fuller, such as John Ryland, but after Fuller's death it emerged that Agnostos was a pseudonym used by Fuller himself; an 1831 edition of Fuller's complete works includes an advertisement identifying him as Agnostos)
