Exercises on Lesson III.
1. Take in twigs with buds on them in December. Place them in water, and watch them from day to day. 2. Select one bud, and make a drawing of it every third day from the time it begins to open. Keep your drawings. 3. How are buds protected? (1) from cold; (2) from animals. 4. What causes the “horse-shoe” marks on horse-chestnut twigs? 5. Make a drawing of a small beech twig, showing buds and leaf-scars.