Manuscript, 'Observations on winds' by John Aubrey John Aubrey presented some observations on winds, the direction of wind and how to measure these, which he had executed in the 1650s and 60s. William Brouncker wrote his comments down in the document in 1673. He came up with a device to measure wind, drawn in the document. Discuss power of wind, including the blowing down of hundreds of oak trees. Subject: Meteorology 14 December 1671