. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Fig. I.—Interior, Conduit No. 2, Ontario Power Co., Niagara Falls, Ontario. Note from te::t that form scars were chipped, down; then whole surface rubbed down with carborun- dum Fig. 2.—Minimum of Erosion by Clear Water. After eight years' service the conduit shown in figure 1 has not been eroded sufficiently to obliterate paint marks made on walls in 1910. As velocities reach 28 feet per second, this is remarkable evidence that good concrete does not erode under sliding contact with clear water. This view tak

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. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Fig. I.—Interior, Conduit No. 2, Ontario Power Co., Niagara Falls, Ontario. Note from te::t that form scars were chipped, down; then whole surface rubbed down with carborun- dum Fig. 2.—Minimum of Erosion by Clear Water. After eight years' service the conduit shown in figure 1 has not been eroded sufficiently to obliterate paint marks made on walls in 1910. As velocities reach 28 feet per second, this is remarkable evidence that good concrete does not erode under sliding contact with clear water. This view taken March 31, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.

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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture