The Handbook for 1916 follows the same plan as that for last year, no new suggestions regarding desirable improvements having been received. The Editor would be glad to consider any proposals for making the book, more usable by amateurs.
Besides those mentioned in the body of the book, Mr. R. M. Stewart has supplied the phenomena of Jupiter’s satellites and Dr. R. K. Young has furnished the times of the Minima of Algol. For the latter, Hartwig’s correction of 1h 30m earlier has been applied to Chandler’s formula:
m = J.D. 2410640.34111 + 2.8673102 E + 0d.102 1 (0° .024 E + 226°)
+ 0d .0153 (sin E /13 + 216°).
Toronto, December, 1915.