Second edition, reprint. 214pp, sparsely illustrated with map and monochrome plates. Green cloth-covered boards with gilt lettering on spine. 8vo. Cloth is a little worn and faded, gently rubbed at corners and spine ends, one corner rounded. Text block edges a little dull. Internally neat, clean, bright and tight.
A collection of essays on unexplained facts and incidents, includung The Devil's Hoof-marks; The Vault at Barbados; Ships Seen on the Ice; Orffyreus's Wheel; Crosse's Acari; Mersenne's Numbers; The Planet Vulcan etc.
