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instrument |
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Leyden jar |
Leyden jar covered by tin foil. Outer terminal missing.... |
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Leyden jar |
Leyden jar covered by tin foil... |
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instrument |
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apparatus |
A Henly's quadrant electrometer, by G. Adams, London. The protractor reads in degrees and seems to b... |
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instrument |
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Leyden jar |
Leyden jar covered by tin foil. Outer terminal missing.... |
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instrument |
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apparatus |
Electrical sparking apparatus. Brass points, retractable, mounted to rotate on wooden pillars fixed ... |
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instrument |
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apparatus |
Electrical sparking apparatus in brass and glass, with two uprights on a horizontal, supported at it... |