Chicago : Engineering and Contracting Pub. Co. · leaf 166
. The absorption of moisture of any block orportion thereof shall not exceed .! per cent ofthe weight of any sample after thorough dry- August 9, 1911. ENGINEERING & CONTRACTING ing and immersion in water for three consecu-tive days. No bricks will be accepted whichcontain lime or other soluble… … Slopa Jfo. Granite
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
