The Canadian journal of industry, science and art . it is at least three times that amount. Considerable difficulty,however, is experienced in separating the Utica beds from the over-lying deposits of the Hudson River Group, and sometimes, also, fromthe underlying Trenton strata—certain fossils ranging throughout thethree groups, and beds of passage occurring likewise between matter, as in many other of our rock formations, is occa-sionally found in thin coatings on the surface of the shale beds. Insome districts, as in the townships of Collingwood and Whitby, C,W.,these shal
The Canadian journal of industry, science and art . it is at least three times that amount. Considerable difficulty,however, is experienced in separating the Utica beds from the over-lying deposits of the Hudson River Group, and sometimes, also, fromthe underlying Trenton strata—certain fossils ranging throughout thethree groups, and beds of passage occurring likewise between matter, as in many other of our rock formations, is occa-sionally found in thin coatings on the surface of the shale beds. Insome districts, as in the townships of Collingwood and Whitby, C,W.,these shales are sufficiently bituminous to yield profitable amounts ofmineral oil and gas for illmninating purposes. The Collingwoodshales have afforded about twenty gallons of oil to the ton ; but thedistilleries of that place have now ceased working, chiefly in conse-quence of the large and cheap supply of mineral oil furnished tocommerce by the oil-wells of the West. The following figures exhibit the more characteristic fossils of theUtica
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Keywords: ., bookcentury1800, bookdecade1850, bookpublishertoron, bookyear1856
