A.-INQUIRY INTO THE DECREASE OF FOOD-FISHES. WASHINGTON: Sva 1880. LETTER FROM THE COMMISSIONER OF FISH AND FISHERIES, TRANSMITTING His report for the year 1878. JANUARY 13, 1879.-Ordered to lie on the table and be printed. UNITED STATES COMMISSION, FISH AND FISHERIES, Washington, D. C., January 9, 1879. GENTLEMEN: I have the honor to transmit herewith my report for the year 1878, as United States Commissioner of Fish and Fisheries, embracing, first, the result of inquiries into the condition of the fisheries of the sea-coast and lakes of the United States; and, second, the history of the measures taken for the introduction of useful food-fishes into its waters. Very respectfully, your obedient servant, 7. A complete exhibit in the National Museum of apparatus and products of the fisheries xviii The work commenced in connection with the International Exhibition at Philadelphia 8. Investigation of the movements and habits of fish as a basis for legislation. Necessity of covering the whole country in this research. Structure of fishways and method of purifying the waters, a corollary.. |