When an agency is terminated it is often needful for the principal to notify all customers for his protection, otherwise they might continue to do business with the agent, supposing he was thus acting, and involve him perhaps in heavy loss. This rule applies especially to partnerships, each member of which is an agent with general authority to do the kind of business in which it is engaged.
If the authority of an agent in writing is revoked, but is still left with him and is shown to a third person who, having no knowledge of the revocation, makes a contract with him, the principal will be held for its execution.
Another rule of law may be given. The law assumes that any knowledge acquired by an agent concerning his principal's business, will be communicated to his principal, who is bound thereby. This rule though is often difficult to apply. Thus, if a cashier of a bank should learn that a note was defective, which was afterward discounted by his bank, it would be regarded as having knowledge of the defect, because it was the cashier's duty to inform the proper officials before they discounted it.
The death of either agent or principal terminates the agency except in cases of personal interest. And when an agent has appointed a substitute or subagent without direct authority, and for his own convenience, the agent's death annuls the authority of the subagent or substitute, even though the agent was given the right of substitution. But if the subagent's authority is derived directly from the principal, it is not affected by the agent's death.
=Agreement to Purchase Land.=--An agreement to purchase land must be in writing to be valid. Oral or parol agreements may be made to do many things, but everywhere the law makes an exception of agreements relating to land purchases. A statute that is quite similar in the states requires this agreement to be in writing and signed by the party against whom it is to be enforced. Thus if the seller wishes to enforce such an agreement, he must produce a writing signed by the purchaser; if the latter wishes to hold the seller, he must do the same thing. The better way is to have the writing signed by both parties.
How complete must the writing be? It need not mention the sum to be paid for the land; it can be signed with a lead pencil: a stamp signature will suffice. The entire agreement need not be on one piece of paper. If it can be made out from written correspondence between the two parties this will be enough.