This is an implied revocation of B's authority.

When termination of agent's authority takes effect as to agent, and as to third person When termination of agent's authority takes effect as to agent, and as to third person.-The termination of the authority of an agent does not, so far as regards the agent, take effect before it becomes known to him, or, so far as regards third persons before it becomes known to them.

Illustrations.

1. (a) A directs B to sell goods for him, and agrees to give B five per cent, commission on the price fetched by the goods. A afterwards, by letter revokes B's authority. B, after the letter is sent, but before he receives it, sell the goods for 100 rupees. The sale is binding on A and B is entitled to five rupees as his commission.
2. (b) A, at Madras, by letter directs B to sell for him some cotton lying in a warehouse in Bombay, and afterwards, by letter, revokes his authority to sell, and directs B to send the cotton to Madras B, after receiving the second letter, enters into a contract with C, who knows of the first letter, but not of the second, for the sale to him of the cotton, C pays B the money, with which B absconds. C's payment is good as against A.
3. (c) A directs B, his agent, to pay certain money to C.A dies and D takes out probate to his will B, after A's death, but before hearing of it, pays the money to C.