Defined in 1 dictionary — Case Law
Definitions from Case Law
United States Supreme Court
packets of letters made up with post-bills, and directed to certain post-offices for distribution or delivery; and whether these be conveyed in a bag or out of it, they are equally the mail; but no bag without them is or can be called the mail.
Defined by the Supreme Court in William Searight v. William B Stokes, 44 U.S. 151.