from The Century Dictionary and Cyclopedia
- n. The temperature at which escaping vapor will ignite momentarily, or flash: distinguished from the burning-point, at which the substance will itself take fire and burn: usually said of oils or hydrocarbons. Also flash-point.
Sorry, no etymologies found.
They are all obviously struck off in moments of excitement -- moments when the writer's variable and fanciful temperament was heated to flashing-point and gave off almost spontaneously these lightnings of prose as it gave, on other occasions, such lightnings of poetry as _The