(London, J. Nichols, 1778). 4to. Extracted from ""Philosophical Transactions"", Year 1777. Vol. 67 - Part II. Pp. 388-400 and 1 folded engraved plate.
Reference : 46616
In this paper Cavallo confirms the experiments of Volta and Henley on the repulsive forces of electricity and relates experiments on frictional electricity.. The plate depicts Cavallo's invention, the portable electrometer.Wheeler Gift: 2471.
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