4. An order for goods to be sent to a man's house, nothing being said about payment. An offer retracted before acceptance. An offer for a certain horse; an acceptance under the impression that a different horse is meant. A service permitted though uninvited; give an example. A man in St. Paul offers by letter a certain piece of property at a certain price to a man in Chicago; an hour after mailing the letter he changes his mind; how can he prevent a contract?
5. A agrees to give B $25 for a silver dime. But if this particular dime were of a rare kind and desired by A, a wealthy coin collector, to complete a set, would the consideration be sufficient? An offer shouted from a fourth story window just as the roof is about to fall, in consequence of which offer a fireman at unusual personal risk successfully attempts the rescue. An offer and acceptance for a horse which is afterwards discovered to have been dead at time of sale. A promise made under threat of spreading an infamous report. An agreement for the purpose of securing the postponement of the payment of a debt. How many "considerations" are there in a valid contract?
6. The sale of an unfashionable "ready-made" suit of clothes, nothing being said about the style. The sale of a plated watch chain, the dealer permitting the purchaser to suppose it solid gold. The sale of a blind horse, nothing being said about its sight, no effort being made to conceal its blindness, and full opportunity for examination being given to the purchaser. The sale of a house and lot at a certain price, greater than the purchaser had at first intended to give, upon the representation of the seller that he had "been offered" such a sum. The purchase of a piece of land which unknown to the vendor contains a valuable mine, nothing being said to mislead said vendor.
7. An oral order for goods to the value of $500. How does the buyer's receiving part of the goods affect the matter? How else could the contract be made binding? What position does a person assume by endorsing a note? By orally saying that a debt of another will be paid? An oral engagement made December first to work a year beginning January first.
CHAPTER XXXII.
AGENCY.
Definitions.—An agent is a person authorized to act for another in dealing with third parties. The one for whom the agent acts is called the principal.
Authority of Agent.—An agent's authority may be granted orally or in writing. When written it is called a "power of attorney." A general agent has all the authority implied in his employment. A special agent has only such authority as is specifically granted.
Responsibility of the Principal.—Between the principal and his agent responsibility is determined by their contract. Expressly or impliedly the principal agrees to pay for the service rendered.
It is in the principal's relation to third parties that the most important rule of agency appears. It is this: The principal is responsible for the authorized acts of his agent. The theory is that the acts are those of the principal, the agent being merely an instrument. And accordingly, the principal is bound not only by such acts of his agent as he has really authorized, but also by such as he apparently authorizes.