1 Four additional examples of this printed form letter have been found. One that Clemens dated ‘March 1’ but did not personalize, even with the name of its recipient, is not collected here (see Will M. Clemens 1900, 27). For the others, see 16 Mar 70 and 13 Feb 71 to Unidentified, and 26 Apr 70 to Fuller.

2 John Fuller, of Boston—the brother of Frank Fuller, Clemens’s business and lecture agent in 1867—was probably a cashier at the Merchants National Bank at this time. It is not known under what auspices he invited Clemens to lecture. His second request concerned a change in his subscription to the weekly edition of the Buffalo Express, a gift from Clemens (26 Apr 70 to Fuller; Boston Directory 1869, 251; ‘The Express,’ Buffalo Express, 8 Feb 70, 2; L2, 5–6, 40–42, 53, 60).

3 ‘Cannibalism in the Cars,’ a macabre sketch about passengers snowbound on a train, apparently written in January 1868, appeared in The Broadway: A London Magazine in November of that year (SLC 1868; ET&S1, 551). For a detailed discussion of ‘Cannibalism in the Cars,’ see Branch, 585–91.