3.—A REPORT UPON ICHTHYOLOGICAL INVESTIGATIONS IN 
WESTERN MINNESOTA AND EASTERN NORTH DAKOTA, 
By ALBERT J. WOOLMAN, A. M. 
INTRODUCTION. 
The field work described in this report was carried on during the 
months of July and August, 1892. The writer was assisted during the 
first part of the season by Ulysses O. Cox, instructor in biology in the 
State Normal School, Mankato, Minn. The work was conducted under 
instructions from the United States Commissioner of Fish and Fisheries, 
Hon. Marshall McDonald, and under the immediate direction of Mr. 
Richard Rathbun, assistant in charge of inquiry respecting food-fishes. 
The object of the investigation was to examine the physical features 
of Big Stone and Traverse lakes, and to make a careful study of the 
fishes found in them for the purpose of comparing and contrasting 
the forms found in these two great river systems—the Minnesota and 
Red River of the North—this being the place where they most nearly 
approach; to observe and record any items of interest bearing on the 
fishes indigenous to these waters, and to note any other facts that 
would in any way bear on fish-culture, such as geological features, 
water supply, vegetation, food supply, and contamination of water. 
In the identification of species I have been assisted by Dr. Barton W. 
Evermann, of the United States Fish Commission, and Dr. Carl H. 
Higenmann, of the University of Indiana. 
The basins and river systems were studied in the following order: 
Lake Traverse Basin: | James River at La Moure and Jamestown, 
Lake Traverse. N. Dak. 
Daugherty Creek. Pipestem River. 
Muslinka River. Red River of the North and tributaries: 
Big Stone Lake Basin: Red River of the North at Moorhead, 
Little Minnesota River— Minn., and Grand Forks, N. Dak. 
At Browns Valley. . Otter Tail River. 
Near Sisseton Indian Reservat-on. Cheyenne River at Lisbon and Val- 
At the head of Big Stone Lake. | ley City, N. Dak. 
‘Big Stone Lake at Creager’s Farm | Maple Creek. 
and Ortonville, Minn. Buttalo River. 
Minnesota River Basin: Goose River. 
Wheatstone Creek. Red Lake River at Grand Forks and 
Pomme de Terre River. Crookstown, N. Dak. 
Chippewa River. ~ | Pembina River. 
Minnesota River at Ortonville and | Tongue River. 
Montevideo, Minn. Forest River. 
Park River, 
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