1900 February 9 meeting of the Royal Astronomical Society

1900 January 12 meeting of the Royal Astronomical Society

1900 January 17 meeting of the Royal Meteorological Society

1900 January 31 meeting of the British Astronomical Association

1900 June 20 meeting of the Royal Meteorological Society

1900 June 27 meeting of the British Astronomical Association

1900 June 8 meeting of the Royal Astronomical Society

1900 March 21 meeting of the Royal Meteorological Society

1900 March 28 meeting of the British Astronomical Association

1900 March 9 meeting of the Royal Astronomical Society

1900 May 11 meeting of the Royal Astronomical Society

1900 May 16 meeting of the Royal Meteorological Society

1900 May 28 (partial phase), observed at Markree

1900 May 28, (partial phase), observed at Armagh

1900 May 28, (partial phase), observed at Maresfield, Sussex

1900 May 28, (partial phase), observed at Stonyhurst

1900 May 28, Council note on preparations for the observations of

1900 May 28, Council note on preparations for the observations of

1900 May 28, observed at Algiers

1900 May 28, observed at Navalmoral, Spain