Authority coupled with an interest is an authority given to an agent
for a valuable consideration, or which forms part of a security. Here the
agent has an interest in the subject matter of the agency, and a limitation isi
thus placed upon the principals power to terminate the agency.
Express authority is that given explicitly either in writing or verbally.
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General Authority is that which authorizes the agent to do everything-
connected with a particular business, and it empowers him to bind his prin-
cipal by all acts done within the scope of his employment. General authority
cannot be limited by any private order or direction not known to the party
dealing with him.
Limited Authority is where the agent is bound by precise instruction.
Special Authority is that which is confined to an individual transac-
tion.
Naked Authority is where the principal delegates the power to the
agent wholly for the benefit of the former.
A naked authority may be revoked; an authority coupled with an
interest is irrevocable.
Unlimited Authority is where the agent is left to pursue his own
discretion.
Authority by law is such cases as where the law creates an agency, as-
where the law authorizes a wife to pledge her husband's credit, even against
his will, it creates a compulsory agency, and her request is his request.
