Darwin's 'Autobiography' originally published: in 'Life and letters of Charles Darwin'. London : Murray, 1887 _ Huxley's 'Autobiography' originally published: in 'From Handel to Halle : biographical sketches with autobiographies of Professor Huxley and Professor Herkomer' / by Louis Engel. London : Sonnenschein, 1890.
Bibliography: pxxi-xxii. _ Includes index.
Autobiographies : Charles Darwin, Thomas Henry Huxley by Charles Darwin. ISBN 0192851314. Published by Oxford University Press in 1974. Publication and catalogue information, links to buy online and reader comments.