Morrison Waite,
Bank of St. Thomas v. The Julia Blake…
“ The master can neither sell nor hypothecate the cargo, except in case of urgent necessity, and his authority for that purpose is no more than may reasonably be implied from the circumstances in which he is placed. He acts for the owner of the cargo because there is a necessity for some one to do so, and, like every agent whose authority arises by implication of law, he can only do what the owner, if present, ought to do. ”
