1870. 
(See Chapters lxxiv to lxxx; also Appendix J.)

Contributed various matter to Buffalo Express. 
Contributed various matter under general head of “Memoranda” to Galaxy
Magazine, May to April, ’71. 
Roughing it begun in September (Buffalo). 
Shem’s diary (Buffalo) (unfinished). 
God, ancient and modern (unpublished).

1871. 
(See Chapters lxxxi and lxxxii; also Appendix K.)

Memoranda continued in Galaxy to April. 
Autobiography and first romance—­[the first romance had appeared in the
Express in 1870.  Later included in sketches.]—­booklet (Sheldon & Co.). 
U. E.
Roughing it finished (Quarry Farm). 
Ruloff letter—­Tribune. 
Wrote several sketches and lectures (Quarry Farm). 
Western play (unfinished). 
Lecture-tour, season 1871-72.

1872. 
(See Chapters lxxxiii to lxxxvii; also Appendix L.)

Roughing it—­book (Am.  Pub.  Co.), February.  U. E.
The mark twain scrap-book invented (Saybrook, Connecticut). 
Tom Sawyer begun as a play (Saybrook, Connecticut). 
A few unimportant sketches published in “Practical jokes,” etc. 
Began a book on England (London).

1873. 
(See Chapters lxxxviii to xcii.)

Letters on the Sandwich Islands-Tribune, January 3 and 6.  The gilded age (with C. D. Warner)—­book (Am.  Pub.  Co), December.  U. E. The license of the press—­paper for The Monday Evening Club.  Lectured in London, October 18 and season 1873-74.

1874. 
(See Chapters xciii to xcviii; also Appendix M.)

Tom Sawyer continued (in the new study at Quarry Farm). 
A true story (Quarry Farm)-Atlantic, November.  U. E.
Fables (Quarry Farm).  U. E.
Colonel Sellers—­play (Quarry Farm) performed by John T. Raymond. 
Undertaker’s love-story (Quarry Farm) (unpublished). 
Old times on the Mississippi (Hartford) Atlantic, January to July, 1875. 
Monarchy letter to Mrs. Clemens, dated 1935 (Boston).

1875. 
(See Chapters c to civ; also Appendix N.)

Universal suffrage—­paper for The Monday Evening Club. 
Sketches new and old—­book (Am.  Pub.  Co.), July.  U. E.
Tom Sawyer concluded (Hartford). 
The curious rep.  Of Gondour—­Atlantic, October (unsigned). 
Punch, conductor, punch—­Atlantic, February, 1876.  U. E.
The second advent (unfinished). 
The mysterious chamber (unfinished). 
Autobiography of A damn fool (unfinished). 
Petition for International Copyright.
                       1876. 
                (See Chapters cvi to cx.)