15. Gently stroke a tendril of the passion flower and write an account of any resulting movement.
16. Mention any three climbing plants which grow wild in this country, and explain in each case how the plant climbs. (1895)
17. What is the difference between (a) a thorn, (b) a leaf-spine, and (c) a prickle? Give examples. (1896)
18. Enumerate and briefly describe the principal varieties of tendrils, and explain how they act. (1897)
19. If a wire is fastened tightly about a growing branch of a common tree, and left for two or three years, what effect will be produced, and how can the effect be explained? (1904)
20. What processes of vegetable growth are accompanied by the presence of sugar? Give examples from plants within your own experience. (King’s Scholarship, 1904)
21. What are the chief uses of the vessels of a herbaceous stem? Mention observations and experiments in support of your statements. (1905)
22. How can you demonstrate experimentally that food substances, formed in the leaves of a tree, descend to the branches below? (1905)