July 2 Tuesday – From Sam’s notebook:

“Heard Prof. Fisher at University, on Leibnitz—plenty names & dates, from birth 1646 to death, 1717” [MTNJ 2: 105]. Note: Gottfried Wilhelm von Leibniz, German mathematician and philosopher, who wrote so widely in journals and articles in several languages that no one has dared to publish a complete works.

On or shortly before this day, Frank Harris, a student in Heidelberg came to the hotel and invited Sam to speak to the Anglo-American Club on the Fourth of July. Harris was accompanied by a brother of Sir Charles Waldstein, probably Martin Waldstein [MTNJ 2: 112].