The observing weather has been considerably above the average and 271 plates were secured on 21 nights. While a number of these were of bright stars, yet the number is an index of fair observing conditions. The for the past seven years for this month is 150 plates on 17 nights. The mirror was successfully re-silvered during the month
Director J. S. Plaskett obtained 51 spectrograms on 4 nights and measured 15 spectrograms for radial velocity. Examined and measured variable spectra with a view to interpretation. Handled the usual administrative work and correspondence. Absent in East until the 9th.
[Plaskett commented on his activities in Montreal, Ed.]
Assistant Director W. E. Harper worked on 7 nights obtaining 81 plates. Measured 35 for radial velocity. Work on A-type spectroscopic parallaxes. Trying for the period of two spectroscopic binaries. Parts of two days silvering the mirror.
Research Astronomer H. H. Plaskett worked 2 nights obtaining 20 plates. Greater part of the month has been occupied in reading up on atomic theory and theoretical physics. Some work has also been done on the nebular paper.
Assistant Astronomer J. A. Pearce observed 5 nights obtaining 97 spectrograms. Measured 30 spectrograms. He prepared 7 bottles of the reducing solution, 4 of developer and 1 of hypo. About 50 of the spectrograms were of the brighter class B stars. They are to be used for classification purposes.
Astronomical Computer S. N. Hill measured and reduced for radial velocity 41 B-type spectrograms. Work in connection with the library. On leave for 9 days.
Senior Clerk Typist Miss H. R. Keay handled the usual correspondence, reports, plates and accounts. Typed part of a publication for Mr. Pearce. Read the proof of Volume III, Number 10.
Instrument Maker Foreman T. T. Hutchison assisted in observing on 17 nights. General repair work around the telescope
Observing Assistant R. M Petrie observed 3 nights securing 22 plates.