Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
Observer
miles - hour
0615 - 0750 18 1.6
0800 - 1032 26 2.5
1345 - 1603 30 2.3
1726 - 1933 19 2.1
Total 93 8.5