[3] Lives of the Philosophers of the Time of George III., by Henry, Lord Brougham, F.R.S., p. 106. London, 1855.
[4] Experiments and Observations on Different Kinds of Air, by Joseph Priestley (3 vols.). Birmingham, 790, vol. II, pp. 103-107.
[5] Lectures on Experimental Philosophy, by Joseph Priestley, lecture IV., pp. 18, ig. J. Johnson, London, 1794.
[6] Translated from Scheele's Om Brunsten, eller Magnesia, och dess Egenakaper. Stockholm, 1774, and published as Alembic Club Reprints, No. 13, 1897, p. 6.
[7] According to some writers this was discovered by Berzelius.
[8] Histoire de la Chimie, par Ferdinand Hoefer. Paris, 1869, Vol. CL, p. 289.
[9] Elements of Chemistry, by Anton Laurent Lavoisier, translated by Robert Kerr, p. 8. London and Edinburgh, 1790.
CHAPTER III. CHEMISTRY SINCE THE TIME OF DALTON