18. What is Mr. Barnacle’s fishing-net?
19. What holds a barnacle fast to a rock?
20. At what part of his life is a barnacle like a crab?
21. Where is Mr. Barnacle’s eye?
22. Where is the head part of a stem barnacle?
23. Where are the barnacles’ eggs before they get loose in the water?
24. What can you say of the size of barnacles?
25. What color are barnacles?
26. Tell me what changes a barnacle makes during his life.
27. Describe a barnacle when in the larva state.