The magician's own book, or The whole art of conjuring (1862)
Arnold, George, 1834-1865, Cahill, Frank · New York, Dick & Fitzgerald · leaf 165
er-fectly air-tight, we shall find that a very great force, evensome hundreds of pounds, is necessary for separating theboards. They are kept together by the weight of the heavyair which surrounds them in the same manner as if theywere surrounded by water. THE PRESSURE OF THE AIR SHOWN BY A… … ANOTHER.Invert a tall glass jar in a dish of water, and place alighted taper under it; as the taper consumes the air in thejar, the water from the pressure withoutrises up to supply the place of the air re-moved by the combustion. In the opera-tion of cupping, the operator holds theflame of a lamp…
Magic tricks
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