The thanks of the publishers are due to: Messrs Chatto & Windus, Messrs Duckworth, and Messrs Houghton Miflin of Boston, U.S.A., for permission to include R. L. Stevenson's Walking Tours; Sir Leslie Stephen's In Praise of Walking; and Mr John Burroughs' The Exhilarations of the Road, from "Winter Sunshine"; also to Mr A. H. Bullen for the extract from The Gentleman's Magazine.