Heath inquires whether Whitehead would be interested in publishing a book with Open Court, also wonders if he would be interested in delivering the Carus lectures.
Fokker sends Whitehead an article he had written for a Dutch journal; asks that he send a copy of Principle of Relativity to the "Physica" journal for review purposes.
A letter from Whitehead's father congratulating him on his book, Treatise on Universal Algebra. Whitehead's father died the following month, so this is likely the last letter ANW got from him.