Held:a.Yes. Promissory notes constitute the obligation exclusively of La Protectora and Barba. They do not constitute an obligation directly binding the defendants. Their liability is based on the principles of partnership liability. A member is not liable in solidum with his fellows for the entire indebtedness but is liable with them or his aliquot part.SC obiter: the document was intended merely as an authority to enable Barba to bind the partnership and that the parties to the instrument did not intend to confer upon Barba an authority to bind them personally.b. Yes. Under Art 1804, every partner may associate another person with him in his share. All partners are considered agents of the partnership. Barba must be held to have authority to incur these expenses. He is shown to have been in fact the president/manager, and there can be no doubt that he had actual authority to incur obligation.