. Engineering for land drainage. A manual for laying out and constructing drains for the improvement of agricultural lands. Drainage. LEVELLING AND TOPOGRAPHY. 69 figures need not be retained after the contours are sketched in and numbered. 13 5 13 2 13 0 12 7 12 6 18,5 ^lUi 12 2 Fig. 13.—Topography by Contours. Squares loo feet, Level Datum 10 feet. Interval between Contour Lines -^ foot. This method of representing topography is so com- plete that a plan for drainage may be accurately laid. Please note that these images are extracted from scanned page images that may have bee
. Engineering for land drainage. A manual for laying out and constructing drains for the improvement of agricultural lands. Drainage. LEVELLING AND TOPOGRAPHY. 69 figures need not be retained after the contours are sketched in and numbered. 13 5 13 2 13 0 12 7 12 6 18,5 ^lUi 12 2 Fig. 13.—Topography by Contours. Squares loo feet, Level Datum 10 feet. Interval between Contour Lines -^ foot. This method of representing topography is so com- plete that a plan for drainage may be accurately laid. 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 Elliott, Charles Gleason, 1850-1926. New York, J. Wiley
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1903
