Hoffmann (Professor), 1839-1919., Plate, Adrian, inscriber., Harry Houdini Collection (Library of Congress) · New York : E.P. Dutton & Co. ; London : George Routledge & Sons, 1904. · leaf 518
518 _ Later Magic to Messrs. Hamley for the knowledge of an ingenious expedient whereby an examined die may be made apparently to change completely from black to white, though it is in reality only of the first-named colour. The die in this case is used not in pairs, but singly. It is a neat little… … Fic. 211. way, for examination, it is held between the fore- finger and thumb of the left hand by two diagonally opposite corners, as shown in Fig. 211. three of its sides being thus simultaneously exposed. The per- former has but to pass the finger of the opposite hand over it, in an upward…
