... Report on the building and ornamental stones of Canada, vol. I-V (1912)
Parks, W. A. (William Arthur), 1868-1936, Canada. Mines Branch · Ottawa : Government printing bureau · leaf 246
Medina Mottled Sandstone. Roman Catholic Church, Niagara Falls, ()nt. Plate XL. … Medina Mottled Sandstone. Tower of Church of England, St. Catharines, Ont. 143 throughout the rocks at intervals of about one-eightli of an mch; theyappear to have arisen from the decomposition of some ferruginous mineral,the nature of which is unceitain. On weathering, these dots become stillmoie…
Building stones
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