Plate 1, An introduction to electricity. In six sections by James Ferguson, 1775. The device across top is an electrostatic generator, operated by turning the handle at far right. The other devices all relate to experiments that can be carried out with the electric charge generated with the machine. James Ferguson (April 25,1710 - November 17, 1776) was a Scottish astronomer and instrument maker.

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James Ferguson, An Introduction to Electricity, 1775

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