And he that maketh a Covenant with the Author, by mediation of the Actor, not knowing what Authority he hath, but onely takes his word; in case such Authority be not made manifest unto him upon demand, is no longer obliged: For the Covenant made with the Author, is not valid, without his Counter-assurance. But if he that so Covenanteth, knew before hand he was to expect no other assurance, than the Actors word; then is the Covenant valid; because the Actor in this case maketh himselfe the Author. And therefore, as when the Authority is evident, the Covenant obligeth the Author, not the Actor; so when the Authority is feigned, it obligeth the Actor onely; there being no Author but himselfe.