Democratic Sentinel, Volume 8, Number 6, Rensselaer, Jasper County, 7 March 1884 — Lamp Chimneys. [ARTICLE]

Lamp Chimneys.

The most noted oculists recommend blue, bluish-gray, or smoke-colored glasses as a protection for weak eyes against the unpleasant effects of red, orange, and yellow light. On the same principle, remarks a scientific contemporary, the trying, reddish-yellow light of candles, lamps, and gas may be pleasantly modified by the uso of chimneys or globes, Shades colored in

light marine bine may also be used for the same purpose. A remarkably near approach to a light as agreeable as daylight is said to be produced by a Ktroleum lamp, with round wick and a jht-blue chimpey of twice the usual length, the latter causing so great a draught that the petroleum burns with a nearly pure white flame.