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Show eacn area. "The five-day reports now are being be-ing used for agricultural and various vari-ous industrial purposes, and eventually, even-tually, when these and other uses become more widespread, man may become so adjusted to this long-range long-range forecasting that he will consider con-sider it a necessity." "When I worked for Sweden's weather bureau," he said, "Icelandic "Iceland-ic conditions were the first thing we'd look for on the chart in making mak-ing up our forecasts." Rossby, who will remain on leave of absence from his Washington post unUrSeptember to serve as director di-rector of the University of Chicago's new institute of meteorology, is the leading exponent of the air mass theory forecasting in this country. He believes that within the next 10 or 15 years the U. S. bureau will be able to extend accurate long range forecasting to 30 days or so. Long range forecasting, he explained, ex-plained, is concerned not with predicting pre-dicting each day's weather but with assaying temperature and rain-f"'' rain-f"'' - .-t v-:'1 tirr.ur in |