Evening Republican, Volume 18, Number 179, Rensselaer, Jasper County, 31 July 1914 — Marble Windows. [ARTICLE]

Marble Windows.

Remarkably beautiful effects are secured by the use of marble Instead of glass. This has been accomplished by a new process which has been devised by an engineer of Hamburg, W. Engle. He has succeeded in making plates of marble no more than three millimetres in thickness and for the use designated it is available up to 20 millimetres thick. The suitability of marble for this purpose was realized some time ago, but the difficulty encountered was that of securing the marble in slabs of sufficient thinness. These plates permit of the passage of a greater amount of light than frosted glass does, and at the same time imparts to the rays a much pleasanter color. Most opal glass Imparts to the light an undesirable greenish tinge, while the light which passes through the marble has a reddish violet which is much pleasanter. After ttys marble has been ground down to the desired thickness It Is subjected to an immersion in oil under high pressure, - and the effects secured in this manner are said to be superior to those of stained glass. ’ !