Journal of the British Astronomical Association. Vol.31 No.3
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- -1BAA Journal - VOL. 31 (XXXI). No. 3 January 1921
- 9PAPERS
- 1REPORT OF THE MEETING OF THE ASSOCIATION HELD ON WEDNESDAY, DECEMBER 29, 1920,
- 2The Annular Eclipse of the Sun.
- 6REPORTS OF THE BRANCHES
- 6WEST OF SCOTLAND BRANCH (GLASGOW).
- 8NEW SOUTH WALES BRANCH (SYDNEY).
- 9REPORTS OF THE OBSERVING SECTIONS
- 9Aurorae and Zodiacal Light Section.
- 9Aurorae.
- 26CORRESPONDENCE
- -1Contents.
- 9Note on a simple Clock-driven Equatorial for Celestial Photography.
- 10The Annular Eclipse of April 8 (Civil), 1921.
- 12Transit of a Dark Body across the Moon's Disc.
- 13Report on the Total Eclipse of the Moon at Barrackpore, India, 27th October, 1920.
- 14On Saturn's Rings and Roche's Limit.
- 21Note on the Appearance of Saturn on 1920 Nov. 16.
- 23Clavius.
- 22CLAVIUS, from a photograph taken 1919 Sept. 15 at Mt. Wilson Observatory, California.
- 24Phenomena of Saturn's Satellites.
- 9Zodiacal Light.
- 26ORIGIN OF THE LUNAR FORMATIONS.
- 37ORIGIN OF SOLAR AND STELLAR HEAT
- 38METHOD OF PREVENTING THE CHIPPING OF ROTARY GRINDING DISCS
- 30SENSITIVENESS OF THE RETINA
- 31THE OUTER CRAPE RING OF SATURN
- 33NOTES
- 33COMET NOTES.
- 35ASTRONOMICAL UNITS
- 35THE MANCHESTER ASTRONOMICAL SOCIETY
- 36SCIENCE AND LETTERS IN RUSSIA
- 36PARALLAXES OF FIFTY-TWO STARS
- 27LUNAR CRATERS
- 29THE AMATEUR'S TELESCOPE
- 38PRINCIPLES OF GLASS-MAKING
- 38NEW MICROPHOTOMETER
- 39ABERRATION IN A LENS SYSTEM
- 39MODEL IN ILLUSTRATION OF THE EMISSION OF LIGHT.
- 39NEW INSTRUMENT FOR KÖNTC.EN-RAY SPECTROSCOPY
- 39NEW FORM OF FOCOMETER
- 40NOTICES
- 40Candidates for Election as Members of the Association. 26th January, 1921.
- 41New Members of the Association. Elected 2Qth December, 1920.
- 41NEW SOUTH WALES BRANCH (SYDNEY). New Members of the Association. Elected 20th October, 1920