CONTENTS 



EEPORT OF THE COMMISSIONER. 



A— INQUIRV INTO THE DECREASE OF THE FOOD-FISHES. 



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1. Pkelimixary steps ' 



Passage of law and appointment of Commissioner i 



2. Investigation of 1871 i 



Researches at Wood's Hole, Mas.s ii 



Publication of report - " 



3. Investigations of 1872 " 



Researches at Eastport, Me "' 



luformation from individuals "i 



A.ssisrance from Dominion authorities iii 



Associates in the inquiry "i 



List of visitors at the Eastport station i^' 



Assistance rendered by the Government v 



United States Revenue-Marine "^ 



United States Coast Survey '^i' 



United States Signal-Service •"^' 



Visit to the British provinces '^| 



Ocean temperatures and the herring fisheries ■*"• 



Explorations of the Bache on the George banks vu 



4. COKRESPONDING KESEAUCHES OF OTHEU NATIONS '^"1 



German explorations of the North Sea '^iii 



Herring fisheries of Scotland '^' 



o. Concurrent action of the United States Signal-Seevice s 



In taking temperature of the water ^ 



Signal station at Eastport, Me ^i 



e. Decrease of the cod-fisheries of the New England coast xi 



Concurrent with the erection of river-dams ^' 



Due to consequent diminution of anadromous fish xi 



Erection of fish-ways necessary to their restoration xiv 



Comparative influence on the cod-fisheries of different shore-fish xii 



Of alewives, shad, salmon ^^i 



Of sea-herring -^^^ 



7. Investigations in 1871 and 1872 on the great lakes xiv 



Report by Mr. J. "W. Milner on white-fish lake trout, &c x v 



B-ACTION IN REGARD TO PROPAGATION OF FOOD-FISHES. 



8. Introductory measures ^"^^ 



Action of American Fish-Culturists' Association x^i 



Consultation meeting in Boston in June ^■^" 



9. Propagation of shad in 1872 ^^'^ 



Their transfer by Seth Green to the Alleghany and Mississippi xvii 



Their transfer by William Clift to the Platte, &c svii 



Assistance rendered by express companies ^yii 



By state commissioners xviii 



Concurrent action of State fish commissioners xnii 



10. Propagation of Maine salmon in 1872 xviii 



Mr. Atkins's salmon-breeding est.ablishment at Buck.sport, Me xviii 



Coml)lnation with State commis.sioners .■ ^^^ 



