![FAHRENHEIT, Daniel Gabriel (1686-1736). 'Experimenta circa gradum caloris.' Extract from: Philosophical Transactions. Vol. XXXIII, no. 381, pp. 1-3. [London: Printed for W. and J. Innys, 1724].](https://www.christies.com/img/LotImages/2018/CKS/2018_CKS_16019_0238_001(fahrenheit_daniel_gabriel_experimenta_circa_gradum_caloris_extract_fro060748).jpg?w=1)
![FAHRENHEIT, Daniel Gabriel (1686-1736). 'Experimenta circa gradum caloris.' Extract from: Philosophical Transactions. Vol. XXXIII, no. 381, pp. 1-3. [London: Printed for W. and J. Innys, 1724].](https://www.christies.com/img/LotImages/2018/CKS/2018_CKS_16019_0238_000(fahrenheit_daniel_gabriel_experimenta_circa_gradum_caloris_extract_fro081708).jpg?w=1)
细节
FAHRENHEIT, Daniel Gabriel (1686-1736). 'Experimenta circa gradum caloris.' Extract from: Philosophical Transactions. Vol. XXXIII, no. 381, pp. 1-3. [London: Printed for W. and J. Innys, 1724].
First edition of Fahrenheit's description of his eponymous thermometer. 'With his "Experiments concerning the Degrees of Heat," Fahrenheit perfected the modern instrument, his principal innovation being a "fixed point" of departure, namely the temperature to which water can be cooled when mixed with ice and salt. This he called zero. At the ends of his scale were normal human blood-heat – which he took at 96° – and the normal freezing point of water, 32°. When this scale was later extended upwards, the boiling point of water fell at 212°. He may have been the first to use mercury as a thermometric fluid' (PMM). This extract also includes Robert Houstoun's 'An Account of a Dropsy in the Left Ovary of a Woman' (pp.8-15), the first treatment of ovarian dropsy by tapping the cyst (Garrison-Morton 6017). PMM 182.
Quarto (218 x 167mm). Folding engraved plate (some faint spotting and browning). Disbound, contained in a quarter morocco folding case.
First edition of Fahrenheit's description of his eponymous thermometer. 'With his "Experiments concerning the Degrees of Heat," Fahrenheit perfected the modern instrument, his principal innovation being a "fixed point" of departure, namely the temperature to which water can be cooled when mixed with ice and salt. This he called zero. At the ends of his scale were normal human blood-heat – which he took at 96° – and the normal freezing point of water, 32°. When this scale was later extended upwards, the boiling point of water fell at 212°. He may have been the first to use mercury as a thermometric fluid' (PMM). This extract also includes Robert Houstoun's 'An Account of a Dropsy in the Left Ovary of a Woman' (pp.8-15), the first treatment of ovarian dropsy by tapping the cyst (Garrison-Morton 6017). PMM 182.
Quarto (218 x 167mm). Folding engraved plate (some faint spotting and browning). Disbound, contained in a quarter morocco folding case.
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荣誉呈献
Robert Tyrwhitt