Essays and observations on the construction and graduation of thermometers, and on the heating and cooling of bodies / By George Martine.

  • Martine, George, 1702-1741.
Date:
1772
Catalogue details

Licence: Public Domain Mark

Credit: Essays and observations on the construction and graduation of thermometers, and on the heating and cooling of bodies / By George Martine. Source: Wellcome Collection.

    174/192 (page 164)
    j 4 Sy ea 164 Tue VARIOUS DEGREES ro ae Of allthe ordinary fimp!e Metals or Metallic Subftances Tin lofes its confiflency, and flows the eafieft, or with the loweft heat. By Sir Z/aac New- ton’s obfervation *, reduced to the numbers of our Thermometer, it melts at gr. re % *89, + 32==)408, Der. Muffchenbroek’s experiments + ehiried it but a there may be. greater differences from accidental mixtures. Sir J/aac’s experiments of moft of the | Heats below this of Tin are, I believe, pretty near the truth. The heats beyond this being deduced in a more precarious way we cannot be fo fure of, Lead is the. Meta] next to Tin that fluxes eafieft. But here I do not find different folks obfervations agrecing fo well asin the other. . In Sir S/aac’s way of finding out the heat of Lead beginning to melt, that would fall on our gr. 540 ¢. But accors - ding to Muffehenbreek’s experiment § reduced. to rife to gr. 769; were it fufceptible of fuch a great * Phil. Tranf. Abr. IV. 2. p. 2. 4. +. Pent. Exp. Ac. Cim, Add. IL. p. 21. }¢ Ibid, p. 2. § (bid, — } expanfion .