VIII CONTENTS. 



Page. 



III. The salmon fishektes of the ConransiA Eiver.- By Livingston Stone 801 



A. The Columbia River 801 



B. Questions relative to Saliao Quinnat 802 



1. Name 802 



2. Distribution 802 



3. Abundance 802 



4. Size ti03 



5. Migrations and movements 803 



6. Kelationships 807 



7. Food 803 



8. Reproduction 808 



9. Artificial culture 810 



10. Protection 810 



H. Diseases 810 



12. Parasites 811 



13. Capture 811 



14. Economical value and application 813 



C. Other varieties of salmon 815 



Salrao truncatus, Suckley 815 



Salmo protens, Pallas 816 



Salmo Gairdueri, Rich 816 



Fario stellatus, Girard 817 



Hypomcsus pretiosus (Girard), Gill 818 



Sal mo spectabilid, Girard 818 



D. Methods of fishing 820 



E. The canneries of the Columbia 821 



IV. Notes on some fishes of the Delaware Eivsk. By Dr. C. C. Abbott . 825 



A. The larger acanthopterous fishes of the Delaware River 825 



1. Introductory 825 



2. The yellow perch, Perca flavesceus (Mitch.) 828 



3. Rock-fish, Roceus lineatus 832 



4. White perch, Morone aviericann H35 



5. Black hass, Micropteriis salmoides 836 



6. Goggle-eyed perch, Pomoxys hexacanthus 837 



7. Sunflsh, Pomotis auritus 837 



River sunflsh, Ichthelis appendix 837 



Blue sunflsh, Ichthelis incisor 837 



Spotted sunflsh, Enneacanthus guttatus 837 



Banded sunflsh, Mcsogonistius chactodon 837 



Mud sunflsh, Acantharcus pomotis 837 



8. Pirate of spindess perch, Aphredoderus sayanus 840 



B. Notes on the winter habits of fresh-water fishes of the Del.aware 841 



V. Method of purifying the residuum of gas-wouks before allowing it to fass off into 



the water. By J. R. Shotwell 847 



VI. Tables of temi'eratuees of air and water at sundry stations of the United States 



Signal Office, from March, 1374, to February, 1875, and from March, 1876, to 



February, 1877, inclusive ■ 851 



APPENDIX C— THE PROPAGATION OF FOOD-FISHES. 



VII. The carp and its ctulture in rivers and lakes, and its introduction into America. By 



Rudolph Hessel 865 



A. Introduction • 865 



B. The races of carp, their history and habits 865 



1. The species and varieties 865 



2. The habits and the mode of reproduction 868 



3. The growth and size 873 



C. The culture of carp and construction of ponds 876 



1. Its .adai>t.ability to artificial culture 876 



2. The localities best adapted to a carp-pond 877 



3. The construction of the pond 878 



4. Stocking the ponds and care of the fishes 883 



5. Taking the fish from the ponds 891 



6. Mixed carp-culture •. 892 



