[§4.] What is the rule in regard to drunkards?
[§5.] What is mentioned as the second requisition to a valid contract? How must assent be given?
[§6.] What is next mentioned as necessary to a valid contract? What is a consideration?
[§7.] What is the effect of mutual promises? How must they be made? How when the parties are distant?
[§8.] Why are gratuitous promises void? In what case are subscriptions binding?
[§9.] Why can not payment be lawfully claimed for gratuitous services? In what cases is a person bound to pay for unasked labor?
[§10.] What else is mentioned as necessary to a valuable consideration? What kind of impossibility will not void a contract?
[§11.] What is said of illegal and immoral considerations?
[§12.] To what kind of contracts does the rule that a consideration is necessary apply? Why not to those under seal?
[§13.] What is declared by the English statute of frauds? What do some states further require?