Report on the building and ornamental stones of Canada (1912)
Parks, William A. (William Arthur), 1868-1936, Canada. Mines Branch (1901-1936) · Ottawa : Dept. of Mines, Mines Branch · leaf 358
too high. Despiteits high transverse strength the stone appears to be very susceptible to.shock). Xo. 152.—This sample is lighter in colour than X^o. 151; its appearanceis represented in Plate LXXV, Xo. 7. On weathering, the colour is identicalwith that of Xo. 151, but the spots are replaced by…
Building stones · Geology, Economic · Stone industry and trade
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
