HEATHER

John Fry . Mathematical master at royal military academy, Woolwich many years; lecturer at Royal Artillery Institute; author of A treatise of mathematical instruments 1849, 7 ed. 1864, new ed. 3 vols. 1871; The elements of mathematical drawing 1872 and other works. d. Stroud-green road, Finsbury park, London 13 Nov. 1886.