CONTENTS 



PAGE 



XXIV. Special Study of Wool . 101 



XXV. Manufacture of Wool . 102 



XXVI. Animal Movements . . 104 



XXVII. Animal Language . . 105 



XXVIII. Forest Trees . . .106 



XXIX. Lumbering 106 



XXX. Properties of Wood . . 107 



Spring Work 



XXXI. Uses of Wood . . . . 108 



XXXII. The Sense of Sight . . 109 



XXXIII. Evaporation . . . no 



XXXIV. Weather Changes . . in 



XXXV. Kinds of Precipitation . 1 1 1 



XXXVI. The Seasons. . . .112 



XXXVII. Germination . . .113 



XXXVIII. Buds 114 



XXXIX. The Chemistry of Ger- 

 mination 115 



XL. Flowering Plants ... 116 



XLI. Non-flowering Plants . 118 



XLII. The School Garden . 118 



XLIII. Our Daily Food . . 119 



XLIV. How our Bodies Grow 120 



XLV. The Sense of Smell . 121 

 XL VI. Vegetable Fibers Cot 



ton 122 



THIRD GRADE 



Suggestions to Teachers . . .124 

 Fall Work 



I. A Visit to a Farm .... 125 



II. The Thermometer . . . .126 



III. Change due to Temperature 127 



IV. Dew 128 



V. Frost 1 29 



VI. Causes of Temperature 

 Changes 131 



VII. Fruits Relation to Plants 133 



VIII. Fruits Size, Shape . .134 



IX. Fruits Color, Taste . .135 



X. Fruits Odor 136 



XI. Fruits Classification . .137 



XII. Fruits Canning, etc. . .139 



XIII. Fruits Drying, Preserv- 

 ing i^o 



XIV. Seed Distribution Field 

 Lessons 141 



XV. Seed Distribution Plant- 

 ing by Man 142 



XVI. Seed Distribution By 

 Animals 143 



XVII. Seed Distribution By 



the Wind 144 



XVIII. Seed Distribution By 

 Water 145 



XIX. Self-distributing Seeds, etc. 145 



XX. Kinds of Soil 146 



Winter Work 



XXI. Changes in Animal Cov- 

 ering 147 



XXII. Migratory Animals . .147 



XXIII. Metamorphic Animals . 148 



XXIV. Animal Coverings . . 149 



XXV. Animal Coverings Fur 1 50 



XXVI. Wool and Hair . . .151 



XXVII. Animal Coverings 

 Various Kinds 153 



XXVIII. The Human Skin . .154 



XXIX. Heating our Homes . . 155 



XXX. Fire Making . . . .156 



XXXI. Lighting our Homes . 157 



XXXII. Bread Making . . .158 



XXXIII. Wheat Constituents . 160 



XXXIV. Flour, Flour Making . 161 



XXXV. Farm Animals Horse 162 



XXXVI. Farm Animals Cow 163 



XXXVII. Farm Animals Mis- 

 cellaneous 165 



XXXVIII. Farm Animals 

 Foreign ....... 165 



Spring Work 



XXXIX. Food Areas Native 

 Birds 166 



XL'. Food Areas Water Birds 167 

 XLI. Food Areas Marsh Birds 168 

 XLII. Food Areas Lowland 



Birds 169 



XLIII. Food Areas Highland 



Birds 170 



XLIV. Food Areas Mountain 



Birds 171 



XLV. Annuals, Biennials, and 



Perennials 172 



XLVI. The Sugar Beet . . .173 

 XLVII. Care of the Soil . . .174 

 XLVIII. A School Garden . .175 

 XLIX. How to Plant . . . .176 

 L. Plants need Heat . . . .177 

 LI. Plants need Light . . .178 

 LII. Plants need Moisture . .179 

 LIII. Inflorescence . 180 



