Hamersly, Lewis Randolph; Leonard, John W.; Mohr, William Frederick (1907). Who's Who in New York City and State. New York City, New York: L.R. Hamersly Company. p. 826.
"The Things That Live on Mars". By H. G. Wells. Illustrated by William R. Leigh. Cosmopolitan Magazine XLIV:4 (March 1908). pp. 334–42.
p. 334, the first of Leigh's four full-page illustrations, is the frontispiece of the issue. Front cover evidently by another artist.
Digital copy (from p. 334) at HathiTrust Digital Library (hdl.handle.net). Retrieved 2016-07-08.