)ts 







































.. 























- 





LEGEND 



o o Total U. S. 1916 - 17 



. — . — .Total U. S. 1917 - IS 



Total U. S. 191S - 19 



— Total U. S. 1919 - 20 



Northwest 1916 - 17 



Northwest 1917 - IS 



Northwest 191S - 19 









































































thwest 1919 - 20 













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.. . 













































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