STUDIES IN ENGINEERING

1. George Alfred Maney, Secondary Stresses and Other Problems in Rigid Frames: A New Method of Solution. 1915. $0.25.

2. Charles Franklin Shoop, An Investigation of the Concrete Road-Making Properties of Minnesota Stone and Gravel. 1915. $0.25.

3. Franklin R. McMillan, Shrinkage and Time Effects in Reinforced Concrete. 1915. $0.25.

(Continued inside back cover)

Maxi´diwiac, or Buffalobird-woman

Photographed in 1910

The University of Minnesota

STUDIES IN THE SOCIAL SCIENCES NUMBER 9

AGRICULTURE OF THE HIDATSA INDIANS
AN INDIAN INTERPRETATION

BY
GILBERT LIVINGSTONE WILSON, Ph.D.

MINNEAPOLIS
Bulletin of the University of Minnesota
November 1917