Modern magic. : A practical treatise on the art of conjuring. (1885)
Hoffmann, Professor, 1839-1919, Hawkins, Arthur, ca. 1940 · London ; New York : G. Routledge and Sons · leaf 328
e of about 45°. To keep the ball steady, and to prevent itsrolling off, some performers have a slight circular hollow scoopedin the surface of the servante itself. A more convenient plan,however, is to use an india-rubber ring (such as is given to infantsteething). This may be placed on any part of… … When the performer desires to intrwhich we will suppose to havebeen borrowed for the purpose ofsome previous trick just completed,he takes the hat with his thumb out-side and his fingers inside the brim,and holds it up with its mouth to-wards the spectators, so as to showindirectly that it is empty…
Magic tricks
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