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Malaria Control in War Areas monthly report ; April 1943
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Malaria Control in War Areas monthly report ; April 1943
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    Approximately 73,500 gallons of oil and 5,500 pounds of paris green were used to treat 7,000 surface acres of ponds and ditches in 12 states. Over 745,000 lineal feet of minor ditching were completed, 1,599,000 lineal feet of ditch were cleaned and 800 acres of pond and stream banks were cleared in April. A total of 433,126 man hours of labor were expended on larvicide and minor drainage projects during the month (Table I). Bids for airplane dusting in Airplane Dusting Regions 1, 3 and 4 have been approved.

    Forty-six major drainage projects were in operation this month in 14 states. Nearly 20 miles (103,278 lineal feet) of new ditch were constructed, 128,500 lineal feet of ditch were cleared, 3,300 lineal feet of underground drains were installed and 283 acres of water surface were eliminated. A total of 157,141 man hours of labor were expended on major drainage projects in April (Table II). The project at Pryor, Oklahoma was completed during the month.

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