1891 January 9 meeting of the Royal Astronomical Society

1891 June 12 meeting of the Royal Astronomical Society

1891 June 17 meeting of the Royal Meteorological Society

1891 March 13 meeting of the Royal Astronomical Society

1891 March 25 meeting of the British Astronomical Association

1891 March 28 meeting of the Astronomical Society of the Pacific

1891 March 3 meeting of the Royal Meteorological Society

1891 May 20 meeting of the Royal Meteorological Society

1891 May 27 meeting of the British Astronomical Association

1891 May 8 meeting of the Royal Astronomical Society

1891 November 13 meeting of the Royal Astronomical Society

1891 November 18 meeting of the Royal Meteorological Society

1891 November 25 meeting of the British Astronomical Association

1891 September 5 meeting of the Astronomical Society of the Pacific

1892 April 20 meeting of the Royal Meteorological Society

1892 April 27 meeting of the British Astronomical Association

1892 April 8 meeting of the Royal Astronomical Society

1892 December 21 meeting of the Royal Meteorological Society

1892 December 6 meeting of the Chicago Academy of Sciences, Section of Mathematics and Astronomy

1892 December 9 meeting of the Royal Astronomical Society