August 12, 1878 Monday – The men left Baden Baden by rail and arrived at Lucerne, Switzerland where they joined Livy, the children and the rest of the party who had been there a few days. (See Baden to Lucern)
August 15 Thursday – The entire Clemens party took a two-day excursion to the Rigi-Kulm. They spent the night in a hotel on the Rigi to watch the sunset and sunrise. (See Excursion to the Rigi-Kulm)