\ɡɹˈuːnɪŋz mˈaɡnɪt], \ɡɹˈuːnɪŋz mˈaɡnɪt], \ɡ_ɹ_ˈuː_n_ɪ_ŋ_z m_ˈa_ɡ_n_ɪ_t]\
Definitions of GRUENING'S MAGNET
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A magnet for removing particles of steel or iron from the eye. It consists of a number of magnetized steel rods, separated from each other, but in close proximity, and fitted at their ends with iron caps. One of these caps is provided with a delicate point of malleable iron, 32 mm. long, 1 mm. wide, and 0.3 mm. thick, which sustains with ease a weight of 225 grains.
By Smith Ely Jelliffe
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