32. Limits of authority to be observed.

There must be strict adherence to the authority conferred by power of attorney1. If the agent in the pretended exercise of his authority acts in excess of and outside the reasonable scope of its special powers, the third party will be unable to make the principal liable2. Thus, where an instrument gives authority to sign contracts, acceptances and other documents, it gives power to sell or purchase negotiable instruments, but it does not give power to pledge them3