. Bulletin. Agriculture; Agriculture. The Mosquitoes of New Jersey 6i More than i8 years ago. the late Dr. John B. Smith began to ex- periment for the purpose of determining the type of ditching that would accomplish this sort of drainage and could be put into the marsh and maintained with a reasonable expenditure. After many BERGEN COUNTY MAP NO. I LEGEND STATE DITCHING COUNTY DITCHING. â SLUlCt CATW Fig. 31. Map of a ditching system. trials, he settled upon a ditch 10 inches wide and 30 inches deep, with perpendicular, smooth sides, as the one most nearly fulfilling the requirements. This de
. Bulletin. Agriculture; Agriculture. The Mosquitoes of New Jersey 6i More than i8 years ago. the late Dr. John B. Smith began to ex- periment for the purpose of determining the type of ditching that would accomplish this sort of drainage and could be put into the marsh and maintained with a reasonable expenditure. After many BERGEN COUNTY MAP NO. I LEGEND STATE DITCHING COUNTY DITCHING. â SLUlCt CATW Fig. 31. Map of a ditching system. trials, he settled upon a ditch 10 inches wide and 30 inches deep, with perpendicular, smooth sides, as the one most nearly fulfilling the requirements. This depth normally reaches the bottom of the sod and is maintained, except where a natural slope requires a. 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 New Jersey Agricultural Experiment Station. [New Brunswick, N. J. ] : The Station
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
