Where anyone bequeaths a
promissory note, it is understood that he had in mind not only the
tablets upon which it is written, but also the rights of action, the
proof of which is contained in the tablets. For it is clear that we use
the same "note" instead of the said rights of action; so when the note
is sold, we understand that the claim was also disposed of. Moreover,
where anyone bequeaths a claim, he is understood to have bequeathed
what can be recovered by an action at law.
Scævola, Opinions, Book III.