P. 6, c. 1.—“Cavendish.” (1730-1810.) An English chemist and mathematician. The discoverer of hydrogen, of the composition of water, and the founder of pneumatic chemistry.
“Priestly,” preestˈle, Joseph. (1783-1804.) An English chemist and theologian.
“Black.” (1728-1799.) A chemist and physician of Edinburgh. His chief researches were set forth in his experiments on “Magnesia, Quicklime and other Alkaline Substances.” He also originated the theory of latent heat.
“Rutherford,” rŭthˈer-ford. (1749-1819.) A Scottish physician and botanist.
“Eudiometer,” eūˈdi-omˌe-ter. An instrument for measuring the amount of oxygen contained in a given bulk of elastic fluid.
“Drummond Light.” So called from Thomas Drummond. (1797-1840.) A British naval officer, the inventor of the light.
P. 6, c. 2.—“Iridium,” ĭ-rĭdˈi-ŭm. One of the metallic elements.
P. 7, c. 1.—“Fluorine,” flūˈor-ĭne.
“Monsieur Goffart,” mo-seerˈ gofˈfärˌ.
“Silos,” sīˈlos. A subterranean pit for keeping grain.