Climate metadata, 1789-c.1860
icoads.noaa.gov
Logbook Digitization in the 1920s
Wallbrink, H. and F.B. Koek, Data Acquisition And Keypunching Codes For Marine Meteorological Observations At The Royal Netherlands Meteorological Institute, 1854–1968
Digitized logbooks, c. 1930
Wallbrink and Koek
Words the drop off between 1918-1922 and 1923-1927
Some corpora in bookworms already:
Some questions: