TABLE OF CONTENTS. 



PAW. 



PREFACE 3 



CHAPTER I. 



Clovers and Other Grasses Clovers not True Grasses, but Members of the Pulse Fam- 

 ilyTrue Grasses Denned Difference between Them and the Clovers in Root 

 Growth Relation of the Clovers to Soil Fertility Their Relation to Improved 

 Agriculture Their Power to Supply Other Crops with Nitrogen Their Ability to 

 Draw Nitrogen from the Atmosphere Their Importance in Feeding Rations T 



CHAPTER II. 



Distribution of the Clovers The Economic Importance of the Legumes The Main 

 Source of Supply of Soil Nitrogen Animal Nitrogen Dependent on Soil Nitrogen 

 Some Variety of the Legumes Adapted to Every Soil Capable of Supporting 

 Life Leading Varieties of Clover Range of the Common Red and Mammoth 

 Their Peculiar Adaptation to the Drift Soils of the West Their Probable Western 

 Limit R ange of the White, Alsike and Crimson Clovers and Alfalfa 16- 



CHAPTER III. 



Red and Mammoth Clovers Their Relation to Soil Fertility in the West Their His- 

 toryThe Five Essentials of Plant Life These Clovers Do Well on Compara- 

 tively Barren Soils Reproduce Themselves Indefinitely in the West by Self- 

 SeedingBest Methods of Seeding in Fall and Spring Depth of Covering Re- 

 quiredExperiment at the Iowa Experiment Station Modern Methods of Cov- 

 ering in the Western States Conditions under Which One or the Other Should 

 Be Preferred Mammoth Preferred Where Insect Enemies Are Abundant Illus- 

 trations of Red and Mammoth Clovers 2S>- 



CHAPTER IV. 



Alfalfa Its Climatic Range, History and Travels Its Different Names in Different 

 Countries Its Specific Purpose a Meadow and a Forage Plant Its Adaptation to 

 Particular Soils Its Two Leading Uses Its Peculiar Adaptation to the Mountains 

 and Plains Its Use in the Semi-Arid Regions as a Substitute for Clover as Dis- 

 cussed by Prof. Georgeson Prof. C. L. Ingersoll on Alfalfa under Irrigation 4* 



CHAPTER V. 



White and Alsike Clover Difference between White and Other Clovers Its History- 

 Its Place in the Permanent Pasture Its Faults History of Alsike or Swedish 

 Clover Its Peculiar Adaptation to Wet Lands Best Methods of Sowing Its 

 Value as a Honey Plant 53 



CHAPTER VI. 



Minor Var'eties of Clovers Sweet Clover, Where Valuable Scarlet or Crimson Clo- 

 verIts Climatic Range and Value Climatic Range of Japan Clover and Its 

 Great Value to the Southern Farmer Value of the Bur Clover to the California 

 Farmer Description of Various Native Varieties, with Illustrations 68 



