You see, dear friend, that I am approaching; and unless official impediments delay me one day, I start the day after tomorrow—Friday, July 1st—by the afternoon train for Basle, and arrive at Zurich by the mail-coach on Saturday, early in the morning. At the latest, I shall be there on Sunday at the same hour. Joachim I expect here; Franz, I am sorry to say, will not be able to come till later on.
Source: Project Gutenberg eBook #3835, Correspondence of Wagner and Liszt — Volume 1, No. 116