I. The contract of employment
II. Introduction and effective cause of sale
Section 1. The effective cause
Section 2. No remuneration unless work effective
Section 3. Introduction of the purchaser
Section 4. Employment of several agents
Section 5. Alteration of terms and net prices
Section 6. Custom and usage
III. Readiness and willingness of person introduced
IV. Revocation of authority
V. Failure of the transaction
Section 1. Rescission and repudiation of the contract
Section 2. Failure not due to principal's default
Section 3. Necessity for completion of transaction
Section 4. Engagements for fixed periods
VI. Agent's misconduct and negligence
Section 1. Breach of duty
Section 2. Unreasonable acts
VII. Illegality
VIII. Further transactions
IX. Orders received after termination of agency
X. Amount of commission.