CONTENTS. 
Page, 
Introduction 7 
Soil types 8 
Water capacity of soils 9 
Specific gravity 9 
Capillary movement 9 
Effect of various salts in molecular proportions 12 
Effect of basicity on capillarity 16 
Percolation 17 
Flocculation 19 
Cohesion 22 
Apparent specific gravity 25 
Vapor pressure 28 
Hygroscopic moisture 29 
Sunmiary 30 
ILLUSTRATIONS. 
Page. 
Fig. 1. Relative capillarity following addition of salts in equal quantity and in 
molecular proportions 10 
2. Effect of salts and fertilizers on capillary rise of moisture 14 
3. Relation between cohesion, apparent specific gravity, and moisture 
content of soils 27 
(5) 
