12. Revocation of authority.

12.     Revocation of authority.

Up to the time of the conclusion of the sale, the auctioneer's1 authority is revocable either expressly or in any of the events which ordinarily determine agencies2, unless the contract is such as to give the auctioneer an authority coupled with an interest3.

The authority can be withdrawn even though the auctioneer has incurred expenses4 and advertised the property for sale5, as the advertisement is the act of the auctioneer and he has no ostensible authority to make representations as to the existence or extent of his own authority. The auctioneer will be liable