Charles S. Wolfe, Amazing Stories (1926)
“ I'm namin' no names, but there was a gang of big guys that wanted old Proctor's formula for Chero, and thought it would be cheaper to buy it off me than him. Anyway, I'm after the paper with the makeup of this explosive when I jimmied the laboratory window. I'm sayin' this right here: Proctor may be a nut, but he's no boob. I was expecting burglar alarms, scientific thief traps, all that kind of stuff. And I was all fixt for an electrified box. Proctor put one over on me just the same. And if he didn't do it with the mind machine, how in Hell else do you account for it? ”
