Observations at Zevenboomen and Kooltjesberg, Netherlands, by an unknown observer., 25-28 June 1823., Acc.10069/107. Meteorological records, mostly concerning Scotland and England, collected by the Royal Society of Edinburgh, Robert Mossman and others., Acc.10069/1-114. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/80734 Accessed April 26, 2024.