19. Give the essential features of a promissory note.
20. Must a promissory note be dated?
21. Distinguish drafts and bills of exchange.
22. Give the names of the parties to a bill of exchange.
23. How is a bill of exchange accepted?
24. What is a check?
25. How does a check differ from a bill of exchange?
26. Are days of grace allowed in the payment of checks?
27. What is certification of a check?
28. What effect does certification of a check by the payee have upon the maker?