. character of the gas. The remarkable feature of The demonstrations actually made are illustrated by these lamps is that under the proper conditions i” T T T f | Waits [Candie vats Porer Per N Cassa] 740 | 062 510 G20 O56 7 | a 4 oe | 325 | 566 | 057 2S } ia |_| . 4 + + — * | | |Length 35/2 Ynches…
Internet Archive · Public domain (published before 1931). Free to use for anything.