Carlill v. Carbolic Smoke Ball Co. vs. Lefkowitz v. Great Minneapolis Surplus Store
A side-by-side comparison of two landmark contracts cases
Carlill v. Carbolic Smoke Ball Co.
[1893] 1 Q.B. 256 (Court of Appeal) (1893)
Holding
The Court of Appeal held that the advertisement was a valid offer to the world at large, not merely a puff or invitation to treat. Mrs. Carlill accepted the offer by performing the conditions specified in the advertisement. The deposit of money at the bank showed the company's serious intent to be bound, and notice of acceptance was waived by the terms of the offer. Mrs. Carlill's use of the product constituted valid consideration.
Doctrine Established
Unilateral Contract Formation (Offer to the World)
Lefkowitz v. Great Minneapolis Surplus Store
251 Minn. 188, 86 N.W.2d 689 (1957) (1957)
Holding
The court held that the advertisement constituted a binding offer because its terms were clear, definite, and explicit, leaving nothing open for negotiation. Lefkowitz accepted the offer by being the first to arrive as specified. The store's unadvertised 'house rule' restricting sales to women was unenforceable because it was not part of the published offer and could not be imposed after the offer was accepted.
Doctrine Established
Advertisements as Offers (Clear, Definite, and Explicit Test)
Comparison Analysis
Carlill v. Carbolic Smoke Ball Co. (1893) and Lefkowitz v. Great Minneapolis Surplus Store (1957) both address the line between offers and invitations to treat in the context of advertisements. Carlill, the famous English case, held that an advertisement promising to pay 100 pounds to anyone who used the smoke ball as directed and still contracted influenza constituted a valid unilateral offer to the world, which Mrs. Carlill accepted by performing the specified conditions. Lefkowitz similarly held that a newspaper advertisement offering specific goods at a specific price on a first-come, first-served basis was a binding offer, not a mere invitation to negotiate.
The general rule in contract law is that advertisements are invitations to treat rather than offers because they typically lack specificity about quantity, recipients, or terms. Both Carlill and Lefkowitz represent the recognized exception: when an advertisement is sufficiently specific, definite, and explicit, leaving nothing open for negotiation, it can constitute an offer capable of acceptance. In Carlill, the specificity came from the detailed conditions of use, the named reward amount, and the deposit of money in a bank to show sincerity. In Lefkowitz, it came from the specific description of goods, stated price, and first-come-first-served limitation.
Students should understand the policy reasons behind the default rule and the exception. The default rule protects sellers from unlimited liability (an ad reaching millions of people could generate unlimited 'acceptances'). The exception applies when the advertiser has manifested an intent to be bound by using specific, definite language that limits the scope of liability. The critical question is always whether a reasonable person would understand the advertisement as an invitation to negotiate or as a commitment to be bound on stated terms.
Similarities
- Both hold that advertisements can constitute binding offers when they are sufficiently specific, definite, and leave nothing open for negotiation
- Both represent exceptions to the general rule that advertisements are merely invitations to treat
- Both involve defendants who argued they never intended to be bound by the advertisement and that it was merely promotional
- Both examine the objective manifestation of intent to determine whether a binding offer was made
Differences
- Carlill involved a unilateral offer (accepted by performing specified conditions over time), while Lefkowitz involved an offer accepted by showing up at the store (closer to a traditional bilateral exchange)
- Carlill involved a health product reward claim with elaborate conditions, while Lefkowitz involved a straightforward sale advertisement with a specific price and quantity
- Carlill addressed issues of consideration for unilateral contracts (is using the product sufficient detriment?), while Lefkowitz focused more on the offer/invitation distinction
- Carlill is an English case from the Victorian era, while Lefkowitz is an American case decided under Minnesota law
- Carlill required extended performance to accept (using the product for two weeks), while Lefkowitz required a simple act (being the first to arrive at the store)
Why This Comparison Matters
Offer and acceptance questions frequently present an advertisement and ask students to determine whether it constitutes a binding offer. Apply the Carlill/Lefkowitz test: Is the advertisement specific as to quantity, price, and terms? Does it invite acceptance by performance or by a specific act? Does it leave anything open for negotiation? If the ad is definite and specific, it is an offer under these cases. If it is vague, general, or addressed to the public without quantity limits, it is an invitation to treat under the default rule.
More Contracts Comparisons
Hadley v. Baxendale vs. Hawkins v. McGee
Hadley v. Baxendale (1854) and Hawkins v. McGee (1929) are both foundational cases on contract damages, but they address different aspects of the remedies framework. Hadley established the foreseeability limitation on consequential damages, holding that a breaching party is liable only for damages that were reasonably foreseeable at the time of contract formation -- either arising naturally from the breach or within the contemplation of both parties due to special circumstances communicated at formation. Hawkins v. McGee ('the hairy hand case') established the expectation damages measure, holding that the proper remedy for breach puts the plaintiff in the position they would have occupied had the contract been performed.
Lucy v. Zehmer vs. Raffles v. Wichelhaus
Lucy v. Zehmer (1954) and Raffles v. Wichelhaus (1864) are both seminal cases on mutual assent and the role of subjective intent in contract formation, but they reach opposite conclusions about when a valid contract exists. Lucy held that a contract existed for the sale of a farm even though the seller claimed he was joking, because the objective manifestations of intent -- signing a written agreement, discussing terms over an extended period, involving the seller's wife -- indicated a serious transaction. Raffles held that no contract existed for the sale of cotton to arrive on the ship 'Peerless' because there were two ships named Peerless and each party had a different ship in mind, creating a latent ambiguity that prevented mutual assent.
Hamer v. Sidway vs. Mills v. Wyman
Hamer v. Sidway (1891) and Mills v. Wyman (1825) both involve promises made in recognition of some prior or existing relationship, but they reach different conclusions about whether the promises are supported by sufficient consideration. Hamer held that an uncle's promise to pay his nephew $5,000 if the nephew refrained from drinking, smoking, and gambling until age 21 was supported by consideration, because the nephew's forbearance from legal activities constituted a legal detriment. Mills held that a father's promise to pay a Good Samaritan who had cared for his sick adult son was not enforceable because the care had already been rendered before the promise was made -- past consideration is not consideration.
Taylor v. Caldwell vs. Krell v. Henry
Taylor v. Caldwell (1863) and Krell v. Henry (1903) are the foundational English cases establishing the doctrines of impossibility and frustration of purpose, respectively. Taylor held that when a music hall was destroyed by fire before the date of a scheduled concert, the contract was discharged because its performance had become impossible through no fault of either party. The implied condition that the hall would continue to exist failed, excusing both parties from their obligations. Krell extended this reasoning to situations where performance remains physically possible but the entire purpose of the contract has been frustrated by an unforeseen event -- specifically, the cancellation of King Edward VII's coronation procession, which eliminated the reason the defendant had rented an apartment overlooking the parade route.