London: Macmillan and Co., Limited. 1918. First Edition, First Impression. Hardcover. Octavo, original olive green cloth with a decorative device stamped in blind and gilt titles on spine & front panel. 275 pp +  pp publisher's catalogue at rear. Publisher's Presentation Copy, with "PRESENTATION COPY" embossed in blind on the title leaf. Previous owner's book label on front paste-down[Fred Riley, 48 Cambridge Rd, Southport]; spine lettering dull otherwise a bright, very good copy. Very Good. Item #311363
¶ Weird spirtualist novel concerning flying; "an overly theoretical novel with minimal plot" [Ashley, ALGERNON BLACKWOOD, A Bio-Bibliography, 1987].