Carlill v. Carbolic Smoke Ball Co. (1893)
Exam Snapshot
Carlill v. Carbolic Smoke Ball Co. [1893] 1 QB 256 is the foundational English contract law case that defines unilateral contracts and general offers. It establishes that an offer can be made to the entire world, and acceptance in such cases does not require formal communication but is completed by performing the requested act.
Core Concept
- General Offer (प्रस्ताव): An offer made to the public at large. While the offer is made to everyone, the contract is only formed with the specific individual(s) who perform the prescribed conditions.
- Unilateral Contract (एकपक्षीय करार): A "promise-for-an-act" contract. Only one party (the offeror) makes a binding promise, and the other party (the offeree) accepts by performing a specific task.
- Waiver of Communication: Generally, acceptance must be communicated. However, in unilateral contracts, the offeror impliedly waives the requirement of formal notification; performance of the condition serves as acceptance.
- Intention to Create Legal Relations: The court held that depositing money (£1,000 in the Alliance Bank) was absolute proof of the company's serious intention to be legally bound, distinguishing the advertisement from a "mere puff" (idle boast).
Nepal Law Anchors
- Muluki Civil Code, 2074 (Section 505): Establishes that a contract is formed through an offer and its subsequent acceptance.
- Muluki Civil Code, 2074 (Section 510): Governs offers made to the public (सार्वजनिक रूपमा गरिएको प्रस्ताव). It states that if a proposal is made publicly with a promise to provide a reward or benefit upon performing a specific task, anyone who performs that task is deemed to have accepted the proposal and is entitled to the reward.
Confusable Terms
| Term | Legal Nature | Key Distinction | Example |
|---|---|---|---|
| General Offer | Legally binding offer | Open to the world; can be accepted directly by performing the act. | Reward poster for a lost dog. |
| Invitation to Treat | Pre-offer stage | An invitation to others to make an offer; cannot be accepted directly. | Goods displayed on a shop shelf. |
| Bilateral Contract | Promise-for-promise | Both parties exchange mutual promises and are bound immediately. | A contract to sell a house. |
MCQ Traps
- Trap: The argument that a contract cannot be made with the entire world. Correct Frame: An offer can be made to the whole world (general offer), but the contract is only concluded with the specific person who steps forward and performs the condition.
- Trap: Believing all advertisements are automatically "invitations to treat." Correct Frame: If an advertisement contains definite, binding terms and shows an intention to be bound (such as depositing money as security), it is a unilateral offer, not a mere invitation to treat.
- Trap: Assuming acceptance is invalid without prior written or oral notice to the offeror. Correct Frame: In unilateral contracts, performance of the condition is sufficient acceptance; prior notification is waived.
Example
Carbolic Smoke Ball Co. advertised a reward of £100 to anyone who contracted influenza after using their smoke ball as directed. To show sincerity, they deposited £1,000 in a bank. Louisa Carlill used the ball as directed, contracted the flu, and sued. The court rejected the company's defense that it was a "mere puff" and ruled that the advertisement was a binding unilateral offer accepted by Carlill's conduct.
Memory Hook
Deposit of money stops the puff, performing the act is acceptance enough.
Quick Revision
- Case Citation: Carlill v. Carbolic Smoke Ball Co. [1893] 1 QB 256.
- Unilateral Contract: Promisor is bound upon the promisee performing the designated act.
- Acceptance by Conduct: No formal notification of acceptance is required; performance of the act completes the contract.
- Nepal Law Match: Closely mirrors Section 510 of the Muluki Civil Code, 2074 (Public Offers).