Show 1 Hot Oil Employed to fa IV Wipe ipe Out M Mosquitoes ut v 1 Hot fuel oil all oil sprayed a along the shores o of f the e lakes in to the Canal zone I is U a trust most efficacious weapon malaria laden against J laden mosquitoes This oil big bib factor In the tight a u y which Is 13 culminating cui cul- cul In certain abolition of I the In Insect In In- sect has destroyed breeding places in the Pedro Miguel l and Gatum lakes The method used to spray the oil on necessitates the use of a rowboat carrying currying car cur a tank containing gallons of oil and und a crew of three men One man rows one works a hand and the the theother other other handles bandies the pump spray pray nor nor- The hot oil is spra sprayed ed on the shore line as fast Cast as the boat can cun be propelled This surface filming aiming has but been found positive and complete Wind action and wavelets carry the oil ull into every ery nook and crann cranny even eren to a considerable distance from the tha point of application A ri rigid ld Inspection Inspection tion follows evel every oiling to determine Jf H f It has hus been done thoroughly Elsewhere than in the lake areas mo breeding is controlled chiefly by training of streams and by and ling filIng |