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Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256

Authored By: Saurabh Goel

City St George's, University of London

Introduction

Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256 is a landmark English contract law case that established several fundamental principles under unilateral contracts, offers to the world at large, and consideration. The case is widely taught in common law jurisdictions and remains one of the most important contract law rulings in the history of law. The Court of Appeal judgment clarified when an advertisement can constitute a legally enforceable offer as compared to an invitation to treat, and in what circumstances acceptance may be communicated without express notice to the offeror.[1]

Facts of the Case

The Carbolic Smoke Ball Company, in 1891, manufactured and sold a medicinal device called the “carbolic smoke ball,” which, they claimed, would keep individuals from catching influenza and other disease. During one of the devastating influenza epidemics, the firm ran an ad in the Pall Mall Gazette dated November 13, 1891, announcing:

“£100 reward will be paid by Carbolic Smoke Ball Company to anyone who contracts the growing epidemic influenza, colds, or any disease resulting from the taking of cold, after using the ball three times daily for two weeks according to printed directions supplied with each ball. £1,000 is deposited with the Alliance Bank, Regent Street, in witness to our sincerity regarding the matter.”[2]

Mrs. Louisa Carlill saw the notice, purchased a smoke ball, and employed it as directed for the specified time. Despite adhering to instructions, she got influenza in January 1892. She subsequently claimed the £100 reward from the company. When the company refused to pay, Mrs. Carlill brought an action for breach of contract.

Legal Issues

The case raised a number of key legal issues[3]:

  1. Whether or not the advert was a binding offer or just a sales puff or invitation to treat
  2. Whether notice of acceptance would be required in order to establish a contract with anyone who complied with the conditions
  3. Whether notice of acceptance was necessary to form a binding contract
  4. Whether there was sufficient consideration from Mrs. Carlill to support a contract
  5. Whether the advertisement was so vague that it did not constitute a concrete offer

Arguments of the Defendant

Carbolic Smoke Ball Company used several grounds for defending their case:

They argued that the advertisement was not a sincere offer but a selling promotional gimmick or “puff” which any reasonable person could not construe as a promise enforceable according to law.

  • They contended that even if it was an offer, it was impossible to contract the whole world, and therefore the offer was not enforceable.
  • They contended that Mrs. Carlill had not communicated her acceptance of the offer to the company, which in their view was a condition precedent to the creation of a contract.
  • They contended that Mrs. Carlill had provided no consideration to support a contract.
  • They opined that the conditions of the advertisement were so vague that they could not constitute a certain offer.[4]

The Court’s Decision

The Court of Appeal decided unanimously in favour of Mrs. Carlill, holding that there was a concluded contract. The ruling was delivered by three judges: Lord Justice Lindley, Lord Justice Bowen, and Lord Justice A.L. Smith.[5]

Lord Justice Lindley’s Decision

Lord Justice Lindley rejected the company’s argument that the advert was only a puff. He emphasized that the statement of the £1,000 deposit with the bank constituted evidence of the willingness of the company to be bound by the promise. He stated:

“It seems to me that the defendants have offered to pay £100 in certain events. They have offered, ‘We promise to pay £100 to anybody who shall be in a certain situation.’ The notice says that £1,000 has been deposited at the Alliance Bank as a proof of sincerity in the matter. Now, why was that money deposited? It was not deposited simply as a security for payment of rewards. The deposit is called to notice for the purpose of showing that the defendants are serious in their offer, and to induce people to use their smoke balls.”[6]

As far as the question of acceptance is concerned, Lindley LJ opined that notice of acceptance was not required in this kind of unilateral contract:

“As notice of acceptance is for the advantage of the offeror, the offeror can waive notice to himself if it appears desirable to do so. You often look to the offer itself to decide whether notice of acceptance must be given. In this instance, looking at the offer itself, I find that notice of acceptance need not be given.”

Judgment of Lord Justice Bowen

Lord Justice Bowen addressed the question of whether the ad was an offer or invitation to treat. He started famously by stating:

“Was it a mere puff? My answer to that is that if it was a mere puff, the advertisement would not have been preceded by the promise that £1,000 had been left at the bank. It was intended to be read by the public as an offer to be accepted.”[7]

In respect of the question whether an offer could be made to the world at large, Bowen LJ said:

“It was not a contract with the whole world. It was an offer to the whole world; and as soon as a person fulfils the condition, the contract is one with the person.”

Discussing the need for communication of acceptance, he noted:

“One cannot have any doubt that, as a normal rule of law, an acceptance of an offer made should be communicated to the person making the offer, so that the two minds may meet. But there is this manifest gloss to be placed upon that doctrine, that as notice of acceptance is necessary for the protection of the person making the offer, the person making the offer may waive notice to himself.”[8]

Lord Justice A.L. Smith’s Judgment

Lord Justice A.L. Smith agreed with his fellow judges, pointing out that the advert was a unilateral offer capable of acceptance by performance without notice:

“This is an offer to the entire world. It is an offer to become bound to any individual who, before revocation, fulfils the condition. It is an offer to become bound to anyone who, before revocation, fulfils the condition, and, although made to the world, the agreement is created with that limited subset of the public who come forward and fulfil the condition on trust of the notice.”[9]

Legal Principles Established

The case established some important legal principles that continue to influence contract law:

Advertisements Can Be Offers

Although advertisements are invitations to propose rather than proposals in most situations, the court ruled that the advertisements could appear in the form of legally enforceable offers so long as such were clear, specific, and express willingness to be bound. The pre-payment of £1,000 with the bank was construed to constitute the firm’s willingness to be bound in law by the offer.

Offers to the World at Large

The case proved that an offer can be addressed to the world at large and not just people. Where an offer of such a kind has been made, any individual fulfilling the terms given in the offer can accept and form a binding contract with the offeror.

Acceptance by Performance

In unilateral contracts, in which the offer is accepted by doing a specified act instead of promising to do so, notice of acceptance is not always required. The court decided that in this instance, acting as instructed by the smoke ball constituted acceptance of the offer, and no further notice was needed.

Consideration in Unilateral Contracts

The court ruled that Mrs. Carlill had provided consideration by using the smoke ball as instructed. The inconvenience of using the product as instructed was enough consideration. Further, the court went on to say that the company benefited from people using their product as instructed since this would serve to increase sales.

Intention to Create Legal Relations

The case determined that the intention to create legal relations is an important element of a legally binding agreement. The company was held by the judge to be expressing their intention to become bound legally on the promise made in the advert through their statement about the £1,000 deposit.

Significance and Impact

*Carlill v Carbolic Smoke Ball Co* has left a considerable and enduring imprint in contract law. It is routinely applied to instances of unilateral contracts, advertisement as offer, and acceptance through performance. The case is particularly relevant to:

Evolution of Unilateral Contract Doctrine

The case helped to establish the doctrine of unilateral contracts, whereby a party promises to do something in return for an act by another party, not a promise. This doctrine is now the foundation of contract law.[10]

Consumer Protection

The case was one of the first examples of consumer protection, allowing consumers to hold corporations accountable for public promises made in advertising.

Commercial Advertising Practices

The decision has influenced the way companies write their promotions and advertisements and encourage greater care in making representations that may be construed as legally binding offers.

Legal Education

The case remains popular in legal education, being traditionally taught in first-year contract subjects in common law jurisdictions worldwide.

Later Developments

While the principles of the ruling in *Carlill* remain accurate, there have been later cases that clarified and further developed aspects of the ruling:

Courts have generally been slow to hold that advertisements constitute offers, and have typically treated them as invitations to treat unless they clearly express an intent to be bound.

Requirements of consideration have been stretched, though the fundamental principle that consideration must be adequate but not need to be sufficient remains in force.

The rules regarding communication of acceptance have been applied to modern contexts, such as electronic communication.

Conclusion

*Carlill v Carbolic Smoke Ball Co* [1893] 1 QB 256 is perhaps the most important contract law case in the history of English law. Its enduring importance is founded upon its clear expression of principles controlling offer and acceptance, particularly where the offer is unilateral. The case demonstrates how commercial necessity and consumer expectation determine the common law and generate principles which are in balance between business interests and consumer protection. More than a century after it was established, the case continues to be cited, read, and applied in courts of law throughout the common law world, making it a cornerstone of contract law jurisprudence.[11]

Bibliography

  1. McKendrick, E. (2018). Contract Law: Text, Cases, and Materials. Oxford University Press.
  2. Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256
  3. Treitel, G.H. (2015). The Law of Contract. Sweet & Maxwell
  4. Simpson, A.W.B. (1985). “Quackery and Contract Law: The Case of the Carbolic Smoke Ball.” Journal of Legal Studies, 14(2)
  5. Poole, J. (2016). Textbook on Contract Law. Oxford University Press.

Reference(S):

[1] Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256

[2] McKendrick, E. (2018). Contract Law: Text, Cases, and Materials. Oxford University Press

[3] Poole, J. (2016). Textbook on Contract Law. Oxford University Press.

[4] Simpson, A.W.B. (1985). “Quackery and Contract Law: The Case of the Carbolic Smoke Ball.” Journal of Legal Studies, 14(2), 345-389

[5] Treitel, G.H. (2015). The Law of Contract. Sweet & Maxwell

[6] Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256, 262-264

[7] Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256, 268-273

[8] Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256, 268-273

[9] Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256, 274-275

[10] McKendrick, E. (2018). Contract Law: Text, Cases, and Materials. Oxford University Press

[11] McKendrick, E. (2018). Contract Law: Text, Cases, and Materials. Oxford University Press

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