eft; while, lenses and the most delicate retinas. But since this dis- ries of hydrocarbons are the illuminating ingredients diluted covery, Dr. Koch, of Germany, had actually photo- shouW the temperature be too high, the product is more vol- with carbonic oxide, hydrogen, and methyl-hydride. The… … powers." The proper method of using them round, forming an arch, then pass down- was next dwelt on, and then the apparatus ward into the hydraulic main, beneath the THE DISTILLATION OF COAL. was described, by means of which a drop of level of the liquid contained in it, and fluid containing any…
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