POTTER, Jack (compiler) and HADES, Mickey (ed.). The Master Index to Magic in Print. Calgary: Mickey Hades International, 1967-1975. Fourteen volumes, plus nine supplemental indices (1971–75). Mimeographed sheets in three-ring binders, labeled on spine, as issued. Covering books and magazines in English up to and including 1964, the Master Index was, according to the publisher, “the most staggering undertaking in magical history," being “an effort to find the most functional yet inexpensive way to produce this gargantuan reference library."