. Bulletin. Agriculture; Agriculture. The Mosquitoes of New Jersey 79 tide-water with its supply of killifish can be brought into the area and caused to circulate (without overflowing the ditches) through- out the system and again escape from the area. Experience has clearly shown that failure to provide for this circulation is followed by breeding in stagnant water in the ditches requiring the extensive use of oil which can not usually be made sufficiently complete to prevent the emergence of all of the mosquitoes. The circulatory feature of the drainage system on the enclosed, non-shrunken,
. Bulletin. Agriculture; Agriculture. The Mosquitoes of New Jersey 79 tide-water with its supply of killifish can be brought into the area and caused to circulate (without overflowing the ditches) through- out the system and again escape from the area. Experience has clearly shown that failure to provide for this circulation is followed by breeding in stagnant water in the ditches requiring the extensive use of oil which can not usually be made sufficiently complete to prevent the emergence of all of the mosquitoes. The circulatory feature of the drainage system on the enclosed, non-shrunken, non-. Fig. 44. Drainage system on an enclosed, sunken and sewage-charged marsh. polluted marsh is just now in process of being worked out. As the matter now stands it seems best to bring the water in through a large channel and to provide for its passage along the foot of the upland and its escape through the narrow trenches into the main outlets. Such a scheme is now in partial operation on the North Elizabeth meadow. At this point the danger which marsh enclosure involves should. 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
