Chapter 9

Garden Work 154 Treatment of Fungi 154 Treatment of Insects--cabbage-worm 156

Plants 158 Annuals, Biennials, and Perennials 158 Class-room lesson 158 Garden Studies 159 Annuals, biennials, perennials 159 Special Study of Garden Plants 160 Sweet-pea; pumpkin; corn; correlations 160

Seed Dispersal--Lesson 164 Detailed Study of Seed Dispersal--class-room lesson 165 Seed collections; man as a disperser of seeds 166

The Sugar Maple--field exercises 168 Maple Leaves--class-room lesson; correlations 169

Weed Studies 170 Observation lesson on weed seeds 171

Grasshopper--field exercises; class-room lesson 172

Aphides 174

Tomato Worm--the adult; the chrysalis 175

The Crow; correlations 177