In the present issue of the Handbook the list of stars occulted by the moon has been reduced as the observations reported did not warrant the great labour of computation—Those given (see p. 8) are for Ottawa—Others will be supplied when there is a demand for them.
In the present issue of the Handbook is a list of stars occulted by the moon computed for Toronto, but valid for places three hundred miles distant. Computations for other places will be supplied when there is a demand for them. The American Ephemeris will hereafter include a list of stars computed for Washington.
In the present issue of the Handbook there is a much fuller list of stars occulted by the moon than any given heretofore. These have been computed for Ottawa and Toronto, and it is very desirable that they be used by a considerable number of observers in central Ontario and Quebec. Calculations will be supplied for the western parts of Canada if observers can be found to use them.
The Handbook for 1921 follows the same lines as that for 1920. The chief difference is in the omission of the extended table giving the distance, velocities, and other information regarding certain fixed stars; and the substitution of a fuller account of the planets for the year, with maps of their paths.
In this issue of the Handbook several errors, which were pointed out by widely-distributed friends, have been corrected. These were chiefly in the tables headed “The Distances of the Stars” and “The Brightest Stars.”
The suggestion was received that a set of star-maps with brief descriptions of the constellations, such as at one time appeared in the Handbook, should be included again. It has not been found possible to do this, chiefly on account of the expense involved.
The Handbook for 1926 is similar to that for 1925, which was somewhat larger than those issued for some years before that date. The increase consisted chiefly in a comprehensive table embodying the most important information known regarding 260 of the brightest stars. This table was prepared by Mr. W. E. Harper of the Dominion Astrophysical Observatory, Victoria, B.C. As in past years, Mr. R. M. Motherwell, of the Dominion Observatory, Ottawa, supplies the list of stars occulted by the Moon.