28 BULLETIN 1017, U. S. DEPARTMENT OF AGRICULTURE. 



CANADA 



SOUTH DAKOTA 



FlG- 7. — Precipitation on watershed of Red River of the North during 12 months com- 

 prising January to June, 1916, and July to December, 1909. 



'{MINNESOTA 



SOUTH DAKOTA .fHe? 

 Fig. 8. — Mean annual precipitation on watershed of Rod River of the North. 



