CONTENTS 



CHAPTER I. 



The Development of Dry Farming ------- 1 



1. Dry Farming Defined. — 2. History of Dry Farming. 

 — 3. Where Dry Farming Applies. 



CHAPTER II. 



The Climate of Western Canada in its Relation to Crop 



Production 11 



4. Climatic Conditions the Chief Causes of Low Yields. — 



5. The Factors of Climate. — 6. Importance of Precipi- 

 tation. — 7. Amount of Precipitation per Year. — 8. 

 Geographic Distribution of Precipitation. — 9. Monthly 

 Distribution of Precipitation. — 10. The Form in which 

 the Precipitation Occurs. — 11. Wide Variations from the 

 Average Precipitation. — 12. Evaporation. — 13. Dry and 

 Wet Years at Saskatoon. — 14. Temperature Necessary 

 for Grermination and Growth. — 15. The Measure of the 

 Heat Supply. — 16. The Temperature Zones of Canada. 

 — 17. Spring and Fall Frosts in Western Canada. — 18. 

 Frost Resistance of Diflferent Crops. — ^19. The Average 

 Temperature of the Growing Period. — 20. The Total 

 Heat Received During the Period of Growth. — 21. Wind 

 Velocity.— 22. The Chinook Wind.— 23. Humidity of the 

 Wind. — 24. Wind Direction. — 25. Atmospheric Humid- 

 ity. — 26. Long Hours of Sunlight in the Growing Season. 

 — 26a. The Effect of Latitude and Altitude on Tempera- 

 ture.— 2eb. The Effects of Forests on Climate. 



CHAPTER in. 



The Soil 37 



{By Roy Hansen M. S. Professor of Soils, University of 

 Saskatchewan, Saskatoon.). 27. The Role of the Soil. 

 (History and Physical Properties). — 28. Origin. — 29. 

 Soil Classification. — 30. Soil Types.— 31. Phjisical Pro- 

 perties of Soils. — 32. Dry-Farming and Soil Physics. 

 (Soil Fertility or Chemistry). — 33. The Food of Plants. 



