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Show Plane Flights Aid In Fight Against Hay Fever Medical science took to the nation's na-tion's airways in 1940 on behalf of 4,000,000 Americans suffering from hay fever. Transport planes participated in a coast-to-coast series of experiments, each carrying oil-smeared slides at altitudes ranging to 12,000 feet. The surveys were sponsored separately by Oren C. Dunham, a Chicago botanist, bot-anist, and the Hollister-Stier laboratories labora-tories of Spokane, Wash. If successful, the studies may provide pro-vide the medical profession with one of its major achievements in the dogged battle against pollinosis. The full story of .the experiments may emerge at winter medical meetings. By studying the course and extent ex-tent of wind-blown pollen migration, the investigators hoped to obtain additional data for the desensitiza-tion desensitiza-tion treatment of pollinosis victims. The treatment begins with injections of pollen extracts until the allergy is determined. For a number of years, however, it had been recognized that hay fever fe-ver in many instances could be traced to pollen from a plant not found in the victim's community. In these cases, the value of an index to local plants and hay fever prevalence prev-alence was restricted. |