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ABSTRACT THE history of the centigrade thermometer is discussed by Dr. N. V. Nordenmark {Svenska Linn6-Sdllskap. Arsskrift, 18, 124; 1935). He points out that the thermometer of Anders

Celsius used the scale of de l'lsle, the freezing point being at 100 °, the boiling point at 0 °. Celsius's diaries are preserved at the Observatory of Uppsala, and show the

development of his experiments with thermometers. The centigrade scale with freezing point at zero and boiling point at 100 ° appeared in 1747 on a thermometer bearing the name of its maker,

the optician Ekstrom. It was constructed by Linngeus. In 1745, Linnaeus had demonstrated to the Senate of the University his new thermometer, which in a letter to Sauvage he describes: “Ego

primus fui, (mi parare constitui thcrmometra nostra, ubi functum congelationis 0 et gradus coquentis aquae 100″. It is strange that this centigrade thermometer of Linnseus, soon in

universal use, and known at first as “the Swedish thermometer”, should ever have become associated with tho name of Celsius. But perhaps it was a casual association suggested by the C for

centigrade, together with the fact that Celsius was known to have experimented with thermometers. Access through your institution Buy or subscribe This is a preview of subscription content,

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Celsius, Linnæus and the Centigrade Thermometer. _Nature_ 136, 365–366 (1935). https://doi.org/10.1038/136365c0 Download citation * Issue Date: 07 September 1935 * DOI:

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