Dear Dr. Ober and other commentators on the schoolbook topic: In a wryly amusing follow-up essay about the difficulties of editing any scholarly edition, Beverly Lyon Clark comments on the challenges and pleasures she encountered in preparing the new W. W. Norton version of THE ADVENTURES OF TOM SAWYER (2007) in her "Editing Tom, Norton Critically," THE MARK TWAIN ANNUAL, 2007, No. 5 (2007): 15-24. On page 19 of this article Professor Clark discusses the strong probability that the page Becky Thatcher tore was the frontispiece in Calvin Cutter's ANATOMY AND PHYSIOLOGY (1848). It seems to me that she makes a strong case for this being the book Twain had in mind in chapter twenty of TOM SAWYER. Let me wish every Forum subscriber a joyous Thanksgiving! Regards, Alan Alan Gribben Auburn University at Montgomery