Sale of Goods. iCh. 31. No. 9. 835 PART VI. SUPPLEMEN FARY 55. Where any right, duty, liability would arise under Variation, wecontoaet of sale by implication of ku, tt ane be negatived viaje op varied by expre agreement or by the course of dealing: oshe. between Che partie. or by usage, if the age be such as to bind both parties to the contract 56. Where, by this Ordinanee, any relerence is made 0 Beans reasonable time, Che question what is are: able time i. question of fact, 57. Where any right, duty, or liability is declared by thes Ordinanee, to may, unless otherwise by this Ordinance provided, be enforced by action, 58. lithe case of sale by auetion, Aue tins . ater, (a) where goods are puto up for cale by auetion in lots, cach lot is primd facte deemed to be the subject of weseparate contract ol sale ; (6) asale by auetion ts complete when the auctioneer Jnnounces its completion by Che fatlof (he hammer, or in-other customary manner; until such aianmouncement ismade any bidder may vedract his bid, (c) where a sale by auction is not notificd to be sub- ject toa right to bid on behalf of the seller, it shall not be Lawful for the seller to bid) himself or to employ any person to bide at such sale, or for the auetioneer know: ingly to take any bid from: Che seller or any such person, any sale contravening this rule may be treated as fraudulent by the buyer: (4) ale by auetion may be notified to be subject toa reserved or upset price, and aright to bid miay also be reserved expressly by or on behalf of the seller. Where a right to bid) is) expressly reserved, but not otherwise, the seller or any one person on his behalf, may hid at the anetion, 53 (2)