BR gives the go-ahead to proceed with the composition of Volume II when Volume I (minus the introduction) is completed. "In addition to the introduction, we wish to add a few notes on single chapters.... They would come more naturally at the end of the volume."

While BR is in America (Jan.-April), "It will be necessary to get Dr. Whitehead to attend to the proofs. He also has certain ideas about the prefatory matter, but he and I can arrange about that without troubling you."

BR doubts if there need be any corrections to Volume II.

Most of the work done in recent years on the subject has been by Polish mathematicians, "whose language is unknown to me".