Transcription: Does it recur in regular periods or not? It is without doubt an interesting and strange object, and the answers to the above questions can only be determined by a long and irregular course of observations over many years. If it were not perhaps too early to hazard a conjecture on the cause of this variation, I should imagine it could hardly be accounted for otherwise than either by the interposition of a large body revolving around Algol, or some kind of motion of its own, by which part of its body, covered with spots or such like matter, is periodically turned towards the earth. File Comment Made in Intimate Arts