‎DAVY, HUMPHREY. - THE RELATION BETWEEN TEMPERATURE AND CONDUCTIVITY DISCOVERED.‎
‎Farther researches on the magnetic phaenomena produced by electricity" with some new experiments on the properties of electrified bodies in their relations to conducting powers and temperature. ReadJuly 5, 1821.‎

‎(London, W. Bulmer and W. Nicol, 1821). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1821 - Part II. Pp. 425-439. Clean and fine.‎

Reference : 43173

‎First printing of an importent paper in which Davy announces his discovery that the conductivity of metals varies inversely with temperature. This discovery receives a practical application half a century later when William Siemens uses it to invent the platinum-resistance thermonmeter to measure temperature. - Parkinson ""Breakthroughs"", 1821 P a. 1971 P.‎