Notebook 068 ← 1876
Jan 1 – Feb 23 • 54 entries
Notebook 069
Feb 24 – Apr 2 • 38 entries
Notebook 070
Apr 3 – Apr 25 • 23 entries
Notebook 071
Apr 26 – Jun 10 • 46 entries
Notebook 072
Jun 11 – Jul 14 • 34 entries
Notebook 073
Jul 15 – Aug 19 • 36 entries
Notebook 074
Aug 20 – Sep 25 • 37 entries
Notebook 075
Sep 26 – Oct 31 • 36 entries
Notebook 076
Nov 1 – Dec 22 • 52 entries
Notebook 077 → 1878
Dec 23 – Dec 31 • 9 entries