Rensselaer Republican, Volume 27, Number 42, Rensselaer, Jasper County, 25 June 1896 — Hollow Brick. [ARTICLE]

Hollow Brick.

Hollow brick, it Is said, are coming into more general use in eastern cities, and quite a pumber of large buildings have been built with them. They crush at 30,000 pounds, or about the pressure which the best solid brick stand. They are made Bxßxl2, with walls one inch thick. It Is claimed that they coat onethird lees than the regular form, making walls proof against fire, moisture and frost, being warm in winter and cool In summer. They require a peculiar clay in their manufacture, one that will not shrink' when dried or burned. The brick are set on end, thus making a wall hollow from top to bottom.