130
Field exercises; class-room lesson; correlations 130

Animals of the Zoological Gardens 132

CHAPTER VIII. FORM II: SPRING

Garden Work 133
Combating Garden Pests 134
Cutworms; root-maggots; flea-beetles 134
Seed Germination 135

Plants for Individual Plots 137
Studies Based on Observations of Growing Plants 137
Planting and care of sweet-peas 138

Wild Flowers 139

Weeds 140

The Apple Tree 141
Field exercise; class-room lesson;
field exercise following class-room lesson 141

Bird Study 143

The Toad 143
Field exercises; class-room lesson; detailed study;
life history of the toad 143

The Earthworm 147
Class-room lesson; references 148

The Aquarium 149
Aquarium Specimens 150
Mosquito; study of adult form; the development; references 150
Caddice-fly 152

Insects Suitable for Lessons in Form II 153

CHAPTER IX. FORM III: AUTUMN

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