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The gradual decline of the Columbia River salmon fishery has been brought about through deforestation, pollution, over-fishing, unscreened water diversions, and construction of dams within the watershed. The latter is believed to be the major contributing factor. Present water-development programs of the U. S. Bureau of Reclamation and the Corps of Engineers have accelerated the organization of a conservation plan for the maintenance of the salmon and steelhead fishery before the proposed dams bring about further diminution of the runs. This plan, endorsed and supported by federal planning agencies, consists of the maximum development and management of the fish runs in tributaries of the lower Columbia River basin. To effectuate this program approximately a 10-year period and 20 million dollars will be required, of which one million dollars have been appropriated for expenditure in fiscal year 1949. Essentially, the program is based on the cooperative efforts of the States of Oregon and Washingto...