The concluding page(s) seem to be missing.

Carus is pleased with the Lowell book, but he is "... a little disappointed with Russell in his philosophy, and I wish he would come a little more around to mine, but I trust that your judgment is sound...."
Re the printing of the Lowell lectures: "It seems to me that 3000 copies is a pretty large edition for a philosophical book ... if Russell is so popular as you say it might be perfectly justifiable to print 3000...."

Carus is astonished that 500 copies of Principia Mathematica have been sold.