Experimental equipment to test electrical conductivity in a vacuum Finish:Rolled Plate 268 from chapter 58

Plate 268 from chapter 58 of Gleanings of natural history

Guess we couldn't Both Win: So let's Shake Hands

Mr William Forster (holding the bow)

no 401 Mile End Road

Experimental equipment to test electrical conductivity in a vacuum Finish:Rolled Plate 268 from chapter 58Plate 9 figures 1 2 from the paper 'Electrical experiments made in order to ascertain the non conducting power of a perfect vacuum', by William Morgan, Philosophical Transactions of the Royal Society, vol. 75 (1785), pp. 272 278. Figure 1 shows a 15 inch mercury gauge partially coated with tin foil, emptied of air and inverted into a mercury cistern. A wire is visible within this reservoir, through which an electrical current was passed but without