FISHERIES OF THE UNITED STATES. 165 



EESULTS OF WORK. 



1. Publications of the Commission — rontiiiued. 



Systematic arraniiemout of subjects for iuvestigatiou — 



Coutinued. Page. 



Locality selected as center of researcli XIV 



Associates iu the imiuiry XV 



Taking of testimony XIV 



Collection of specimens XV 



For the National Museum XV 



For distribution toother establishments, as colleges, 



academies, museums, &c XV 



P'aciiities given to officers of colleges and museums for 



making collections , . XV 



Photographic jiictuics of fishes. >!cc XV 



Scient ilic visitors to "Wood's Hole during the season XV 



Objects secured of special interest XVI 



Conference \yith State comniis.si(mers in Boston XVI 



Corre.sponiling researches of associates : 



By J. ^\'. Milncr. on the great lakes XVII 



By Dr. IT. C. Yarrow, on the Carolina coast XVII 



Second visit to South coast of New England in 1872 XXXVI 



General results of the investigation XVII 



Recapitulation of objects of the inquiry XVII 



Decrease of food-tishes XVIII 



Sub.stantiated by testimony XVIII 



Established by the investigation Xvili 



.Supply of fish iu the sea not inexhaustible XIX 



Injurious eli'ects of the decrease XX 



Causes of the decrease, alleged or actual XX 



1. Disapearance of tlu' food of fishes XXI 



2. Change in the locality of the tishes themselves XXI 



3. Disease and atmo.spheric agencies XXII 



4. Ravages of predacious fishes XXII 



5. Human agencies XXIII 



Polution of water XXIII 



Over-fishing XXIV 



By fixed apparatus XXIV 



Location of such apparatus in Mas.sachu- 



setts and Rhode Island XXV 



By nets and lines XXXI 



6. Combination of human and other agencies, especi- 



ally blue-fish: 



Extent of agency of blue-fish XXXH 



Their diminution not desirable XXXII 



Their abundance dependent on that of other fish. . XXXII 



Measures suggested for relief XXXIII 



Regulation of use of fixed nets XXXIII 



Action by the States XXXIV 



Bill proposed for the purpose XXXFV 



Arguments in its favor XXXIV 



Absolute prohiljitiou by the United States, the alter- 

 native of want of action by the States XXXIV 



Anticipation of improvement XXXVI 



Result of imiuiries in 1872 XXXVI 



General summary of results XXXVIII 



'Conclusion XL 



I. Report of the Commissioner VII 



Table of contents XLHI 



' n. General plan of inquiries prosecuted 1 



Memoranda of inquiries relative to the food-fishes of 



United St.ites 1 



Questions relative to the food-fishes of the United 



States 3 



m. Testimony in regard to the present condition of the 

 fisheries, taken in 1871, Newport, 



Rhode Island 7 



