Printed Journal Letter 4: June 11, 1877
Printed Journal Letter 13: May 19, 1882
Notebook XIII, October 30, 1874-June 12, 1875
Printed Journal Letter 20: July 1886
Printed Journal Letter 5: February 12, 1878
Printed Journal Letter 6: June 8, 1878
Last Journal Letter: Notes on Events, May 1889-June 1891
Printed Journal Letter 3: January 1877
Printed Journal Letter 1: Sept. 23, 1875
Printed Journal Letter 2: June 5, 1876