Henry D. Thoreau (1817–62).

Thoreau, his Life and Aims, by H. A. Page (Chatto & Windus). Thoreau, by H. S. Salt (“Great Writers Series”). Essays by R. L. Stevenson (Familiar Studies of Men and Books), and J. R. Lowell (My Study Window).

The best edition of Thoreau’s writings is published by the Riverside Press, Cambridge, U.S.A. Some useful volumes of selections are issued by Walter Scott, Limited, with good introductions by Will. H. Dricks. Walden, with introduction by Theodore Watts-Dunton (Henry Froude).

R. L. Stevenson (1850–94).

Letters of R. L. Stevenson to his Family and Friends (2 vols.), by Sidney Colvin, with introduction. R. L. Stevenson, by L. Cope Cornford (Blackwood & Son).

Richard Jefferies (1848–87).

Eulogy of Richard Jefferies, by Walter Besant (1888). Nature in Books, by P. Anderson Graham (Methuen, 1891). Richard Jefferies, by H. S. Salt (Swan Sonnenschein, 1894). Dictionary of National Biography. Chambers’s Cyclopedia of English Literature.

Walt Whitman (1819–92).

Walt Whitman, by William Clarke (Swan Sonnenschein). Essay by R. L. Stevenson (Familiar Studies of Men and Books). Walt Whitman: a Study, by J. Addington Symonds. Walt Whitman, by R. M. Bucke (Philadelphia). Walt Whitman, by John Burroughs (Constable). The New Spirit (Essay on Whitman), by Havelock Ellis (Walter Scott). The best edition of Leaves of Grass, published by David McKay, Philadelphia.