Research source

The "coal" is a piece of spongy platinum which bears a close resemblance to a lump of half burnt coal, and is…

Date of account: Published 1897
Source: Hours with the Ghosts or, Nineteenth Century Witchcraft Illustrated Investigations into the Phenomena of Spiritualism and Theosophy
Reference: Hours with the Ghosts or, Nineteenth Century Witchcraft Illustrated Investigations into the Phenomena of Spiritualism and Theosophy · selected passage 85
Rights: public_domain
Language: English
Record updated: 2026-08-24

Record summary

The "coal" is a piece of spongy platinum which bears a close resemblance to a lump of half burnt coal, and is palmed in the hand, as a prestidigitateur conceals a coin, a pack of cards, an egg, or a small lemon

Published source text

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Source passage

Source text · mention only

It is a juggling trick. The "coal" is a piece of spongy platinum which bears a close resemblance to a lump of half burnt coal, and is palmed in the hand, as a prestidigitateur conceals a coin, a pack of cards, an egg, or a small lemon. The medium or magician advances to the grate and pretends to take a genuine lump of coal from the fire but brings up instead, at the tips of his fingers, the piece of platinum. In a secret breast pocket of his coat he has a small reservoir of hydrogen, with a tube coming down the sleeve and terminating an inch or so above the cuff. By means of certain mechanical arrangements, to enable him to let on and off the gas at the proper moment, he is able to accomplish the trick; for when a current of hydrogen is allowed to impinge upon a piece of spongy platinum, the metal becomes incandescent, and as soon as the current is arrested the platinum is restored to its normal condition.

Historical context

Contextual commentary · mention only

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Modern context

Contextual commentary · mention only

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