^i CONTENTS. 



CHAPTER IL 



THE POWER OF MOTION IN PLANTS. 



CHAPTER ni. 



PLANT GROWTH. 



Germination of seeds jg 



The function of green leaves "\ aq 



The plant is a factory gQ 



Tlie composition of plants gj 



The chemical composition of American grasses i 53 



CHAPTER IV. 



CLASSIFYINO, NAMING, DESCRIBING, COLLECTING, STUDYING. 



Plant affinity «« 



Familiesof greatest worth gj 



GraminesB, the grass family ' ^ 



Tlie name of a plant " qq 



Collecting and preserving grasses 70 



Grasses in certain places 73 



How to begin the study 75 



CHAPTER V. 



NATIVE GRAZING LANDS. 



Eflfectof over-feeding dry districts «g 



The native pastures an 



The native grasses of the Pacific slope b:;^ 



The agricultural grasses of Montana §7 



The native grasses of the great basin ' 93 



The native grasses of Northern Mexico gi 



How seeds are distributed jqq 



