[16] An. de Chimie, 54—28
[17] An. of Philos.—4—356
[18] Manchester Memoirs, Vol. v. page 120.
[19] Philos. Mag. Vol. xiii.
[20] See a very excellent essay on the alloy of copper and tin by M. Dussaussoy, in the Annales de Chimie & Physique. 5—113.
[21] This author obtained the Royal Society’s gold medal for his essay on the composition, &c. of specula for telescopes. Philos. Transact. 1787.
[22] An. of Philos. Vol. 12.
[23] An. de Chim. & Physique. 5—233.
[24] The result for this last article must be considered more uncertain than any of the previous ones, the experiment being more complicated.
[25] That is, the temperature that would be denoted by mercury inclosed in a vessel having no expansion by heat; or else in one that expanded in the same rate as mercury.