REPORT OF COMMISSIONER OF FISH AND FISHERIES. LXXI 



Over 2,000 bound copies of the reports and bulletins were distributed 

 to collaborators of the Comuiission, libraries, and scientific institutions, 

 and about 7,500 pamphlets, copies of papers appearing in these volumes 

 and issued in advance of the full volumes. 



The library acquired 713 books, chieily through gift and exchange 

 ibr the publications of the Commission. Of those donated we are 

 indebted to the officers of the Government Printing Office for over 100 

 volumes and to the Societe Nationale d'Acclimatation de France for 72 

 volumes, which were presented by that society in return for eggs of the 

 quiunat salmon sent to it the previous year. 



ERECTION OF A FISHWAY AT THE GREAT FALLS OF THE POTOMAC RIVER. 



A contract having been entered into June 9, 1891, by the Chief of 

 Engineers, U. S, Army, with Isaac H. Hathaway, of Philadelphia, for 

 the construction of a fish way at Great Falls, in accordance with plans 

 and specifications prepared in this office, work was begun early in July 

 and sections 4, 5, and 6 were completed during the year. 



THE WORLD'S COLUMBIAN EXPOSITION. 



The preparation of the Commission's exhibit at the World's Colum- 

 bian Exposition was actively prosecuted under the immediate direction 

 of Mr. J. W. Collins, the representative of the Commission on the 

 Board of Management, U. S. Government Exhibit. As assistants the 

 following special agents were appointed: E. C. Bryan, in charge of 

 administration and of preparation of section of fisheries; W. de C. 

 Eavenel, in charge of section of fish-cultnre; and W. P. Seal, in charge 

 of construction of aquaria. 



The scope of the fisheries section embraces a series of vessel and 

 boat models, and drawings of sail and builders' plans of fishing ves- 

 sels; specimens and casts of fishes; mounted skins of sea-lions, seals, 

 and birds; fishermen's clothing, nets, and other apparatus used in the 

 fisheries; photographs, cartoons, and water-color illustrations of the 

 fisheries and fishery industries of the United States and Alaska; also 

 a series of the angling appliances manufactured and used in the United 

 States. In the preparation of the cartoons and water-color sketches 

 the Commission availed itself of the services of Mr. Henry W. Elliott; 

 in the drawings of plans of fishing vessels, of the services of Mr. C. 

 B. Hudson, and in the making of casts of fishes, of those of Mr. S. F. 

 Denton. 



The representation of the section of fish-culture will be by means of 

 specimens, models, and illustrations (graphic and photographic) of fish- 

 cultural stations (hatcheries, ponds, etc.); cars, vessels, boats, cans, 

 etc., used in the transportation of eggs, fry, and adults of fishes; 

 apparatus used in the artificial propagation of fish ; the eggs, fry, and 

 adults of fishes artificially propagated; the methods of fish-cultural 

 work, and of fish-ladders or fish ways. The models of the fish -cultural 



