Journal of the British Astronomical Association. Vol.37 No.5
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- 1BAA Journal Vol. 37. No. 5. February 1927
- 1Contents
- 5Photo: Mr. Ε. C. Collinson's Home-made Equatorial
- 6REPORT OF THE MEETING OF THE ASSOCIATION, HELD ON WEDNESDAY, FEBRUARY 23, 1927
- 15REPORTS OF THE OBSERVING SECTIONS
- 15The Aurorae and Zodiacal Light Section. The Auroral Arch
- 18PAPERS
- 18The Igneous Origin of some of the Lunar Formations
- 38The Effect of a Diaphragm over the "Ramsden Disc " in the Eyepiece.
- 39Mutual Eclipses of Jupiter's Satellites
- 40OBITUARY
- 40The late Mr. Joseph Thomas Ward.
- 40COMMUNICATIONS
- 40THE AMATEUR AND THE OBSERVING SECTIONS
- 41ORIGIN OF THE LUNAR FORMATIONS
- 41REVIEW
- 41Norton's Star Atlas and Telescopic Handbook. 7,000 Stars, Clusters, Nebulce, &c, for Epoch 1920
- 42NOTES
- 42COMET NOTES
- 44DISCOVERY OF COMET 1927d
- 44NOTE ON THE CLASSIFICATION OF LONG-PERIOD VARIABLE STARS
- 45THE RELATIVITY SHIFT IN SPECTRAL LINES
- 46New Members of the Association. Elected 2yd February, 1927
- 47Eclipse Committee
- 50Council and Officers