CONTENTS. 

 CHAPTER II. 



THE POWER OF MOTION IN PLANTS. 



CHAPTER III. 



PLANT GROWTH. 



Page 



Germination of seeds - - 48 



The function of green leaves 49 



The plant is a factory - - 50 



The composition of plants -- 51 



The chemical composition of American grasses .,-.- 52 



CHAPTER IV. 



CLASSIFYING, NAMING, DESCRIBING, COLLECTING, STUDYING. 



Plant affinity - - 60 



Families of greatest worth - 61 



Graminese, the grass family 64 



The name of a plant - 69 



Collecting and preserving grasses - TO 



Grasses in certain places - 73 



How to begin the study - - - 75 



CHAPTER V. 



NATIVE GRAZING LANDS. 



Effect of over-feeding dry districts 78 



The native pastures - - . - 80 



The native grasses of the Pacific slope 82 



The agricultural grasses of Montana ._... 87 



The native grasses of the great basin - 93 



The native grasses of Northern Mexico 94 



How seeds are distributed .- - 100 



