INDEX. 



Page 



Air, Composition of 149 



" Expanded by Heat 83 



" Pressure of 171 



Animals, Covering of 141 



Ants' Nests 147 



Aquaria, for Schoolroom 48 



Back Swimmer 72 



Balloon, Hot Air 89 



Ballooning of Spiders 118 



Bee and the Lupine 51 



Bee, Cross Fertilization of Lupines, 54 



" Leg of 57-58 



Bird Fauna of a Locality 181 



' Skins, How Obtained 178 



Birds 177 



B rds, Bill of 177 



Colors of 180 



Feet of 177 



Migratory 181 



Nesting of 180 



Notes of Habits of 181 



Residents 181 



Song of 181 



Black Flies 66 



Boiling 92 



Boletus 40 



Breathing of Insects 174 



Breeding Cages for Insects 46 



Brook Insects 60 



Caddice Flies 65 



Candle Flame 154 



Capillary Attraction 100 



Carbonic Acid 128. 152 



" Test for 152 



Caterpillars 45-46 



Preserving 33 



Caullcle 26 



Chlorophyll 130 



Chrysalids 45 



Clams 146 



Clay 99 



Clouds, How Composed 92 



Cocoons 45-46 



Collecting Net for Insects 30 



Collection of Insects, How to Make, 30 



Condensation 93 



Conifers, Fertilization of 58 



Cotyledons 26 



Covering of Animals 141 



Crabs 146 



Cross Fertilization 54 



Crystallization, Solution and ... 95 

 Crystals, How to Obtain. ... 96 



Cultivation of Soil, Reason for ... 100 



Page 



Currents in Air and Water 87 



Currents in Water 90 



Damsel Flies 78 



Dandelion 7 



Dandelion, Seed Forming 7 



Diatoms 127 



Diffusion of Gases 153 



Dodder 135 



Dragon Flies 74 



" Feeding Habits of ... 76 



" " Transformations of . . 76 



Duck, Bill and Feet of 179 



Earthworms 140 



Eggs of Frogs, Toads and Salaman- 

 ders 137 



Embryo, of Plant 26 



Eschscholtzia . 51 



Expansion of Air by Heat 83 



" " Solids by Heat .... 85 

 " Water by Heat .... 81 



Feathers 141 



Ferns 120 



Fertilization of Flower 53 



Flame of Candle . 154 



Flower, Parts of a 52 



Flowering Plants 128 



Fogs, How Composed 92 



Food of Plants 128 



Frogs, Eggs of 127 



Frost 101 



Fruits 130 



" Ripening of 131 



Fruit Trees, Fertilization of Flowers, 58 



Fungi 35 



Fungi, Feeding Habits of 43 



Fungus, Life History of 39 



Gas Making . . 154 



Gases 149 



Gases, Diffusion of 153 



Geaster 41 



Giant Water Bug 74 



Gills of Water Insects 60 



Graphite 164 



Grasshopper, Breathing of 174 



Gravel 99 



Hawks, Feet and Beak of 179 



Heat 79 



Heat Expands Air 83 



Solids 85 



" " Water 81 



