The agency relationship; the ambiguous principal problem; subagency -- Rights and duties between principal and agent -- Vicarious tort liability -- Contractual powers of agents -- Fraudulent acts of agents -- The undisclosed principal -- Liability of the agent to third persons -- The doctrine of ratification -- Notice and notification; imputed knowledge -- Termination of the agency relationship -- The creation of a partnership -- The operation of a partnership -- Dissociation of a partner and dissolution of a partnership -- The limited partnership -- The limited liability company