Show explains how oil puts out oue wigglers wigg lers mosquito WIgg wigglers lers or larane in evno aro are not smothered by the oil sprayed on their pools they simply drown the researches of dr david rollin working at the molteno institutor in south africa and just announced in london liy fly sir arthur M H shipley ploy ruo run counter to to the older and commo commonly lily notion mosquitoes and their larvae like all insect insects 9 have no lungs lunga or gills to breathe hront lie with stich auch as aa higher tier animals have they aticy got get tile tho oxygen they require through fay steina of tubes open log ing directly to tile the outside air and br inward to nil all parts of their bodies doctor nellin kelt in discovered that filos mosquito quito larva larino e lind had certain cells in these tubes that secreted a fatty sub brunce which served to keep the water out hut but upon experimenting with them thein using oil liquids that dissolve fats lie ho found that if these protective secretions were thus dissolved the breathing tubes of the larva filled up tip with water and tile the hapless wig alers drowned |