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Text Only Records
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19. Read-type Medical Frictional Generator, English, c. 1770
| 20. Electrostatic Voltaic Pistol, by W. & S. Jones, London, c....
| 21. Electrostatic Tinplate Fire House, by W. & S. Jones, London,...
| 22. Medical Director, by George Adams Jnr, English, 1786
| 23. Lane Electrometer on Leyden Jar, by George Adams Jnr, London,...
| 24. Medical Electrostatic Machine, by George Adams, London, 1786
| 25. Focimeter, by Hamblin, London, Mid-20th Century
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