Two of these ads from the backpages of Harper's Illustrated Monthly Magazine, one of the journals published by MT's publishers during the last 15 years of his life, advertise sets of his "Best Books" (there are seven of these in one ad, and only six in the other). Another offers his "Six Funniest" (which in fact consists of four titles). Or you might get a reduced rate subscription to one of Harper's periodicals with your MT, or MT at "half price."
