History, theory, and practice of the electric telegraph (1866)
Prescott, George B.(George Bartlett),1830-1894 · Boston, Ticknor and Fields · leaf 55
Fig. 16. Among the most remarkable of this class of animals may beenumerated the Raia torpedo (Fig. 16), the Gymnotus electricus, 36 PRELIMINARY NOTIONS. or electric eel (Fig. 17), the Silurus electricus, the Trichiuruselectricus, and the Tetraodon electricus. … Fig. 17. Recent experiments made by MM. Humboldt and Gay-Lussaohave proved that the least injury to the brain of these animalsdestroys at once their power of producing these shocks. In 1773, the celebrated Hunter published the anatomical struc-ture of the torpedo, showing the position of the…
Telegraph
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