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 152
uaiTV blocks, experience lias shown that the plugand feathers method may be used alone or that it may with advantage becombined with otlici devices. The most satisfactoiy plan must be workedout for each stone by itself. Stones for liuildiiifj; uihI Dcconition, Merrill, p. \^^^\. An interestiiif;…
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.