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Excerpt from Progress in Biological Inquiries, 1930 Progress in biological investigations during the year 1930 as con ducted by the bureau's division of inquiry respecting food fishes, has been most gratifying. According to our present views, the program of scientific research shows a better balance between the theoretical and the practical aspects of fishery science and aquatic biology and a more satisfactory distribution of projects among the various sections of the country and the fishery industries than ever before, There are still many gaps in the program. Many fisheries are threatened by depletion. Means of augmenting the fish supply in man locali ties must still be devised. Many of the very principles 0 fishery conservation still await discovery. However, through the adoption of a well-rounded research plan, made possible by the act of May 21, 1930, known as the 5-year construction and maintenance program for the United States Bureau of Fisheries, we are confident that results of practical benefit will accrue to the fishery industries, to the game-fish angler, and to the country at large that many times out weigh the expenditures involved. Although the functions of the Bureau of Fisheries have been vastly enlarged since its establishment in 1871 by the organization of first, the division of fish culture, then the division of fishery industries, and later, the Alaska division, the division of inquiry still discharges many of the original functions of the old Fish Commission, especially those of prosecuting the necessary inquiries, chiey biological in character, regarding the occurrence and the extent of declines in the number of food fishes in the coastal and interior waters, of discovering what the causes of such declines may be, and of devising and recommending means of overcoming such declines either by regulatory legislation or by more positive and direct means of augmenting the resource. About the Publisher Forgotten Books publishes hundreds o