earn from Coryton, the last English writer on a light, and for several years the platinum light has patents, that she took vut her first patent in 1790; in been one of the scientific toys of the laboratory. Hy- 1800, took out 39 patents ; in 1810, 222; in 1830, 551; drogen has been adopted as the… … loons. ry was achieved by mechanical on- - Of the annexed cuts, Fig. 1 is a struction, and not by an extra cloud of canvas.” The wonderful progress vertical -section in the middle of Fig. 2, and Fig, 2, follows the line, 123 of American inventions would appear . 45 and 6 5 Fig. 1. A-cylinder of…
Internet Archive · Public domain (published before 1931). Free to use for anything.
