Answers are grounded in this paper and cite their sources.
My papers of June 18th,1863 and January 12, 1865, contained a record of observations at Windsor, Nova Scotia, from October 1862 to the end of February 1864. From this latter date they were continued until August 8th of the same year, and I have now to report this concluding series, giving at the same time a summary of results derived from the whole of my observations. I have also to report, at the request of Sir William Thomson, the results of two years’ observations of atmospheric electricity taken at Kew Observatory with his self-recording apparatus, and reduced under his direction and under my own more immediate supervision at the Natural Philosophy Laboratory of the University of Glasgow.
No takes yet. Share an insight, caveat, or question.
Joseph David Everett (1868) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: