found: The popularity of error and the unpopularity of truth, 1869:t.p. (Parallax)
found: Modern English biography, 1892-1921:(Rowbotham, Samuel Birley; b. 1816; d. Dec. 23, 1884; founder of the modern Zetetic philosophy; author under the signature "Parallax")
found: Flat Earth, 2007:passim (Samuel Birley Rowbotham, travelling lecturer and quack doctor known by the pseudonym "Parallax", practised as "Dr Samuel Birley", one early work published under pseudonym "Tryon")
found: Biology, hygiene and hydropathy, 1900:t.p. (Dr. S. Rowbotham)
notfound: Oxford DNB;Dictionary of scientific biography