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Show Explains How Oil "Puts Out' Wigglers Mosquito "wlKgiers," or larvae, are not smothered by the oil sprayed on their pools; they simply drown. The researches of Ir. Puvld Kellln, working work-ing at the .Molteno Institute In Sotith Africa, and Just announced In London by Sir Arthur K. Shipley, run counter to the older and commonly accepted notion. Mosquitoes and their larvae, like all Insects, have no lungs or pills to breathe with, such as higher animals hnve. They get the oxygen they require re-quire through systems of tubes opening open-ing directly to the outside air nnd branching Inward to nil parts of their bodies. Doctor Kellln discovered that mosquito larvae had certain cells In these tubes that secreted a fatty substance, sub-stance, which served to keep the water out. Hut upon experimenting with them, using oil, liquids that dissolve fats, he found that If these protective secretions were thus dissolved, the breathing tubes of the larva filled up with water and the hapless "wigglers" "wig-glers" drowned. |