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FISHERIES OF THE UNITED STATES. 197 



EESULTS OF WORK. 



1. Publications of the Comiiiissioii— Continued. 



Appendix J?— Continued. 



III. Tlio .salmon tisheries of tho Columbia Rive^- 

 Continu«'(l. 



10. Protection 



11. Diseases 



12. Parasites 



13. Capture oi i 



14. Economical value and application 813 



C. Other varieties of salmon ■ 815 



Salmo truncatus, Suckley 815 



Salmo proteus, I'allas 816 



Salmo (jairdneri, Rich 816 



Fario stellatus, Girard 817 



Hypomesus pretiosus, (Girard), Gill 818 



Salm spectabilis, Girard 818 



D. Methods of lisbing 



E. The cuuuerie.s of the Columbia 



IV. Notes on somes lishes of the Delaware Riyer, 



bvDr. C. C. Abbott .' 825 



A. The lartreracanthopterous fishes of the Del- 



aware River 



1. Introductory 



2. The yellow perch (Perca flavescent), 



(Mitch.) 



3. Rotktish ( Ruccus lineatus) 832 



4. White perch (Jforo?ie americana) 835 



5. Black bass (Micropterus mlmoides) 836 



6. Goggle-eyed perch (Pomoxys hexacan- 



thus) g3j 



7. Suulish (/'o/rtotis auritus) 837 



River sunfish (Ichthelis appendix) 837 



Blue suntish (Ichthelis incisor) 837 



Spotted suntish (Enneacanthus gutta- 



tus) 837 



Banded sunfish (Mesogonittiug chaeto- 



don) 837 



Mud sunfish (Acantharcus pomotit) . . . 837 



8. Pirate of spiui'lcss perch (J.y/iredod«ru* 



Sayanvs) 840 



B. Notes on the winter habits of fre8h-w<»ter 



fishes of the Delaware 841 



v. Method of purifying the residuum of gas-works 

 before allowing it to pass oif into the 



water. By J. R. Shotwell 847 



VI. Tables of temperatures of air and water at sun- 

 dry stations of the United States 

 Signal Office, from March, 1874, to 

 February, 1875, and from March, 

 1876, to February, 1877, inclusive .. 851 



Appendix C. — The propagation of food- fishes. 



VII. The carp and its culture in rivers and lakes, 

 audi ts introduction into America. 

 By Rudolph Hessel 865 



A. Introduction 865 



B. The races of carp ; their history and habits. 868 



1. The species and varieties 865 



2. The habits and the mode of reproduc- 



tion 868 



3. The growth and size 878 



C. The culture of carp and construction of 



ponds 178 



1. Its adaptability to artificial culture. . . 870 



