ANIMAL RESOURCES AND FISHERIES OF UNITED STATES. 237 



Results of work. 



1. Reports of the Commission. 



(UNITED STATES COMMISSION OF FISH AND FISHERIES. PART II. y 



XXII. PAPERS RELATING TO PRACTICAL FISH-CULTURE. 



A. Method of treating adhesive eggs of certain fishes> 



especially of the Cyprinidae, in artificial propa- 

 gation. By Rudolph Hessel. pp. 567-570. 



B. On the so-called "dry 7 ' method of impregnating 



spawn. By Alexander Stenzel, inspector of 

 fisheries in Silesia, Germany, pp. 571-574. 



C. Fish-culture in salt or brackish waters. By Theo- 



dore Lyman, Fish Commissioner of Massachu- 

 setts, pp. 575-577. 



D. Descriptions of improved apparatus in fish-hatch- 



ing, pp. 578-587. 

 APPENDIX E. OBSTRUCTIONS TO THE UPWARD MOVEMENT OF FISHES 



IN STREAMS. AND THE REMEDY, pp. 588, 589. 



XXIII. ON FISH-WAYS. By Charles G. Atkins, pp. 591-615. 



XXIV. ON OBSTRUCTIONS TO THE ASCENT OF FISH IN CERTA1K 



RIVERS, p. 617. 



A. Obstructions in the rivers of Maine. By E. M. 



Stillwell. pp. 617-621. 



B. Obstructions in the tributaries of Lake Cham- 



plain. By M. C. Edmunds, pp. 622-627. 



C. Obstructions in some of the rivers of Virginia, 



By M. McKennie. pp. 628-629. 



D. Character of the streams on the northern shore of 



Lake Michigan. By J. F. Ingalls. pp. 630- ;:?2, 



E. Characters of some of the northern tributaries of 



Lake Michigan. By James W. Milner. pp. 

 632-634. 

 APPENDIX F. NATURAL HISTORY, pp. 635-636. 



XXV. THE CRUSTACEA OF THE FRESH WATERS OF THE UNITED 

 STATES. By Sidney I. Smith. 



A. Synopsis of the higher fresh-water Crustacea of 



the Northern United States, pp. 637-657. 



B. The crustacean parasites of the fresh-water fishes 



of the United States, pp. 661-665. 

 XXVI. SYNOPSIS OF THE NORTH AMERICAN FRESH-WATER 



LEECHES. By A. E. Verrill. pp. 666-689. 



XXVII. SKETCH OP THE INVERTEBRATE FAUNA OF LAKE SUPE- 

 RIOR. By Sidney I. Smith, pp. 690-706. 

 XXVIII. FOOD OF FRESH-WATER FISHES. By Sidney I. Smith. 



pp. 708-709. 



XXIX. NATURAL AND ECONOMICAL HISTORY OF THE GOURAMI 

 (Osphroinenus gorarny). By Theodore Gill. p. 710. 



A. Natural history, pp. 710-717. 



B. The introduction and attempts to introduce the 



gouraini into foreign countries, pp. 718-723. 



C. Rules for transportation and introduction, p. 727. 

 XXX. NOTES ON THE GRAYLING (ThymaUus) OF NORTH AMER- 

 ICA. By James W. Milner. pp. 729-742 



APPENDIX G. MISCELLANEOUS PAPERS, p. 743. 



