Appian, Civil Wars  3.14  (ca. A.D. 145-165): When the public scribes had taken down his declaration [of his adoption by Caesar in his will], Octavian went from the forum straightway to Antonius. The latter was in the gardens that Caesar had given to him, which had formerly been Pompeius'. As Octavian was kept waiting in the vestibule for some time, he interpreted the fact as a sign of Antonius' displeasure, but when he was admitted there were greetings and mutual inquiries proper to the occasion. (H. White, trans.)