MADNESS OPENS THE DOOR. London: Thornton Butterworth Limited, n.d. . Octavo, pp. [1-8] 9-319 [320: ads], original brown cloth, spine panel stamped in black. First edition. "Science fiction novel of a matter transmitter which sends the hero first to the moon and then to a planet round another star." - Locke, A Spectrum of Fantasy, p. 49 (Locke's variant binding B which he speculates is a later binding state). Bleiler (1978), p. 40. Reginald 02773. William Harry Hopkins bookplate affixed to front paste-down. A very good copy. (#148084).
No statement of printing.