Chapter 7Introduction to the law of contract
and, in more recent times, the Internet, to sell their pro-
ducts direct to the public. Even if the word ‘offer’ is used,
the advertisement is still an invitation to treat.
Advertising a forthcoming auction sale does not amount
to an offer to hold it.
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Partridgev Crittenden(1968)
Partridge placed an advertisement in the Cage and
Aviary Birdsmagazine, which read ‘Bramblefinch cocks,
bramblefinch hens, 25s each’. A Mr Thompson replied to
the advertisement and was sent a bramblefinch hen.
Partridge was charged with ‘offering for sale’ a wild bird
contrary to the provisions of the Protection of Birds Act
1954 and was convicted at the magistrates’ court. His
conviction was quashed on appeal to the Divisional
Court of the Queen’s Bench Division. The court held that
since the advertisement constituted an invitation to treat
and not an offer to sell, Partridge was not guilty of the
offence with which he had been charged.
Comment. It should be noted that the word ‘offer’ did
not appear in the advertisement in this case. However, in
SpencervHarding(1870) a circular containing the word
‘offer’ was held to be an invitation to treat.
An advertisement placed in a newspaper or magazine
by a mail order firm constitutes an invitation to treat:
the customer makes the offer, which may be accepted or
rejected by the mail order firm.
Similar principles apply to electronic trading via the
Internet, otherwise known as e-commerce. Posting
advertisements on a website amounts to an invitation
to treat; by selecting the products and services required,
the customer is making an offer to buy, which may
be accepted or rejected by the seller. So if a company by
mistake advertises on its website £200 video recorders
for sale at £2, it could refuse to sell the goods at the
advertised price.
Although most advertisements will be treated as in-
vitations to treat, there are some situations where an
advertisement may be regarded as a definite offer, e.g. as
in Carlillv Carbolic Smoke Ball Co(1893).
3 Company prospectuses. When a company wishes to
raise capital by selling shares to the public, it must issue
a prospectus (an invitation to treat). Potential investors
apply for shares (the offer) and the directors then decide
to whom to allot shares (the acceptance).
Paynev Cave(1789)
The defendant made the highest bid for the claimant’s
goods at an auction sale, but he withdrew his bid before
the fall of the auctioneer’s hammer. It was held that
the defendant was not bound to purchase the goods.
His bid amounted to an offer which he was entitled to
withdraw at any time before the auctioneer signified
acceptance by knocking down the hammer. The com-
mon law rule laid down in this case has now been
codified in s 57(2) of the Sale of Goods Act 1979.
Harrisv Nickerson(1873)
The defendant, an auctioneer, advertised in the London
papers that a sale of various goods including office
furniture would take place in Bury St Edmunds. The
claimant travelled from London to attend the sale, but
the items of furniture he had been commissioned to
buy were withdrawn from the sale. It was held that the
defendant auctioneer was not obliged to compensate
the claimant for a wasted journey. Advertising that a sale
of certain items will take place is a mere declaration of
intention. It does not create a binding contract with any-
one who acts on the advertisement by attending the sale.
However, advertising that an auction will be ‘without
reserve’ amounts to an offer by the auctioneer that once
the auction has commenced the lot will be sold to the
highest bidder however low the bids might be (Warlow
v Harrison(1859) and more recently Barryv Heathcote
Ball & Co(Commercial Auctions)Ltd(2000)).
5 Tenders. Large undertakings, such as public authorit-
ies, often place contracts by inviting interested firms to
tender (offer) for the business. An invitation to tender
can give rise to a binding obligation on the part of the
inviter to consider tenders submitted in accordance with
the conditions of the tender.
4 Auctions.At an auction sale the call for bids by an
auctioneer is an invitation to treat. The bids are offers.
The auctioneer selects the highest bid and acceptance is
completed by the fall of the hammer.