The Other Men

This planet, being essentially of the terrestrial type, had produced a race that was essentially human, though, so to speak, human in a different key from the terrestrial. These continents were as variegated as ours, and inhabited by a race as diversified as Homo sapiens. All the modes and facets of the spirit manifested in our history had their equivalents in the history of the Other Men. As with us, there had been dark ages and ages of brilliance, phases of advancement and of retreat, cultu...

 Good and Bad From Chemistry

From common salt are obtained chemically as primary derivatives chlorine—both a war gas and a means of purifying water; and 'caustic soda.' … [O]n the chlorine side there is obtained chloride of lime, (a bleaching powder and a disinfectant), chloroform (an anesthetic), phosgene (a frightful ware gas), chloroacetophenone (another war gas), and an indigo and a yellow dye. [O]n the soda side we get metallic sodium, from which are derived sodium cyanide (a disinfectant), two medicines with [l...