The observing weather was fair for the month and 138 plates numbering from 8629 to 8767 inclusive were obtained during the month on 17 nights and parts of nights. The telescope was out of commission for about a week for silvering and for attaching a stiffening frame to the spectrograph. The weather, however, was cloudy during this interval and only one observing night was lost.
Director J. S. Plaskett obtained 37 spectrograms on 5 nights and measured 27 spectrograms for radial velocity. Considerable time was occupied with the attachment of a stiffening frame to the spectrograph and tests and adjustment afterwards. Closed up the accounts for the fiscal year and did the usual administrative work and correspondence.
[It was announced that Plaskett had been elected as a member of the Royal Society, Ed.]
Research Astronomer W. E. Harper obtained 76 spectrograms on 6 nights. Measured 66 spectrograms for radial velocity, 30 spectrograms for absolute magnitude and estimated types for 60 spectrograms. Spent 3 days measuring Einstein plates.
Astronomer R. K. Young obtained 3 spectrograms on 1 night.He spent the whole month on the reduction and computation of measures of the eclipse plates for the Einstein effect. The completed final results which gave a displacement approximately that required for the relativity hypothesis and were transmitted the values to Chant. [The results were published in Volume II, Number 15 of the Publications., Ed.]
[The monthly Talks on Astronomy column appeared the Daily Colonist on March 4. It was written by R. K, Young and was titled The Stars in the Sky, Ed.]
Assistant Astronomer H. H. Plaskett obtained 22 spectrograms on 4 nights. Determined the temperature of the carbon arc used as a standard for solar and stellar temperatures by the wedge method as 3080 ± 30 K. Computed the absorption coefficients for the lenses and ground glass screens used. He reduced solar wedge spectra of July 21, 1921 and from them determined the atmospheric transmission and intensity distribution. Showed that the latter corresponds to a black body temperature of between 6700 and 7000 K.
Clerk-Stenographer Miss H. R. Keay handled the usual correspondence. Entered plates and closed accounts for the fiscal year. Prepared books for binding and did proof reading.
Instrument Maker Foreman T. T. Hutchison was on holiday for the last 10 days. Assisted with observing on 7 nights. Made repairs and alterations to the spectrograph and heating case during the time they were dismounted. Usual work in keeping the telescope in proper observing condition.
[The monthly Talks on Astronomy column appeared the Daily Colonist on March 4. It was written by R. K, Young and was titled The Stars in the Sky, Ed.]