Publications of the Astronomical Society of the Pacific Volume 9 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ...barrel, and was constructed by the mechanician of the college, according to plans kindly furnished by Mr. Saegmuller, who also made a present of the wheels and governor for the driving-clock. The batteries are the "Edison-Lalande," furnished by Bunnell & Co. of New York, and are admired for their constancy and cleanliness. The Dutch Ministry kindly allowed the free import of this "telescope with accessories, for the sake of instruction." The fitting-up of the observatory was intrusted to the Director of the Georgetown College Observatory, Father J. G. Hagen, S. J., and his plan was to adapt it principally to the observation of variable stars. The light construction and the comparatively short focus of the instrument render it especially fit for this purpose, and superior to any telescope now exclusively devoted to this branch of astronomy. Its first Director, Mr. Jos. Hisgen, S. J., is already known to the readers of the Astronomischc Nachrichten by his observations of variable stars, which he made at the Georgetown College Observatory, in preparation for his new position. THE SPECTRA AND PROPER MOTION OF STARS. Bv W. H. S. Monck, F. R. A. S. In the year 1892 I called the attention of the members ot this Society to a connexion between the character of the stellar spectra and the proper-motion of the corresponding stars, which I afterward followed up in Astronomy and Aslro-physics and elsewhere. I had hoped that by this time the Draper catalogue would have been extended to the Southern Stars, which would have enabled this theory to be subjected to a wider test. I recently met with a catalogue which seemed well suited for a test, though, of course, I had only the original Draper catalogue (with some corrections kindly supplied to me by...