6 CONTENTS. 



PAGE 



WHERE LEAVES GET THEIR MATERIAL . . 60 



ARRANGEMENT, NUMBER, AND FORMS OF LEAVES 62-67 



WHAT PLANTS DO WITH THEIR FOOD ... 68 



THE IMPORTANCE OF PERFECT SEEDS ... 70 



INDIVIDUAL PLANTS, THEIR GROWTH AND USES . 73-84 

 (Indian Corn, Potatoes, Beans, Peas) 



CHAPTER III TREES. 



THE STUDY OF TREES OF GREAT IMPORTANCE . 85 



How TREES BENEFIT LIFE .... 87 



PLANTING AND CULTIVATING GROVES ... 88 



TREES AFFORD BEAUTY AND SHELTER BIRDS . 89 



CHARACTERISTICS AND USES OF INDIVIDUAL TREES 92-103 

 (Elm, Maple, Oak, Cottonwood, Poplar, Hickory) 



CHAPTER IV INSECTS. 



THE FOUR PERIODS IN INSECT LIFE . . . 104 

 WHAT INSECTS EAT DURING THESE STAGES . . 105-107 

 INTELLIGENCE DISPLAYED BY INSECTS IN SECUR- 

 ING FOOD, ETC. ...... 108-115 



How INSECTS AID IN PLANT LIFE . . . 109-112 



INSECT ENEMIES ....... 112 



MEANS FOR DESTROYING INSECTS . . . 115 



SOME COMMON INSECT PESTS . . . . 117 



LIFE-HISTORY OF THE HOUSE FLY . . . 117-119 



WEEVILS, How AND WHERE THEY WORK . . 120 

 GRANARY WEEVIL, GRAIN MOTH, INDIAN MEAL 



MOTH 122-123 



OPERATIONS OF THE HESSIAN FLY . . . 124 



BUGS IN GENERAL, THE SQUASH BUG . . . 126 



How TO KEEP OUT INSECTS .... 12^- 



