_:vb7052942 "(rail) An incline, a hill."@en . _:vb7052943 . _:vb7052942 . _:vb7052943 "This is the hardest duty on the railway, for the trains are heavy and there are some long 1 in 40 banks."@en . . "5" . _:vb7052943 "1940 December, O. S. M. Raw, \u201CThe Rhodesia Railways\u2014II\u201D, in Railway Magazine, page 640:"@en .