Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 18
iving the bowl again, heinto theit neverreaches the floor—it disappears in mid-air. The illusions heshows you are toomany to retail atlength. Objects ap-pear and disappear.Heavy metal ob-jects, such as forks,spoons and jack-knifes, which havebeen shown to theaudience and whichcan have no… … pare or execute than any clever boy or girlof fourteen may possess. It is based on theBlack Art performance of the famousHermann, and relies on a principle of op-tics for its success. To prepare such a magiccave, the requisites are a large soap box, afew simple tools, some black paint, someblack…
Handicraft · Amusements
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