Horace Bénédict de Saussure
Horace Bénédict de Saussure
1740-1799
Swiss geologist remembered for his extensive alpine investigations chronicled in his Voyages dans les Alpes (1779-96) and theories regarding the formation of the Alps derived therefrom. Saussure made careful meteorological measurements, developed an improved thermometer and atmometer, and invented the hair hygrometer for measuring humidity (1781). He is recognized as the first experimental petrologist for his work on fusing granites and porphyries, and he helped popularize the term "geology," which replaced "geognosy" in the late eighteenth century.
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MAGENDIE, FRANçOIS
(b. Bordeaux, France, 6 October 1783; d. Sannois, Seine-et-Oise, france, 7 October 1855)
Physiology, medicine.…
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Horace Bénédict de Saussure