Memoirs . rt 217-469. pis. \v*iii Kyi. June. 1908. Vol. 14. 1. Lowell, Percival.— Tin- Origin of the Planets, pp. 1-10. pis. i-iv. June,1913. Fernald, W. Southard, E. , and Tafl. A. E— Waverley Researches io the Pathologyof the Feeble-Minded. (Research Series, Cases I to X.) pp. 17-128. 20 pis. PROCEEDINGS. Vols. 1-56, $5 each. Discount to booksellers 25 , ; to Fellows 50%, or for whole sets lidThe individual articles may be obtained separately. A price list of recentarticles is printed on the inside pages of the cover of the Proceedings. (lomplete
Memoirs . rt 217-469. pis. \v*iii Kyi. June. 1908. Vol. 14. 1. Lowell, Percival.— Tin- Origin of the Planets, pp. 1-10. pis. i-iv. June,1913. Fernald, W. Southard, E. , and Tafl. A. E— Waverley Researches io the Pathologyof the Feeble-Minded. (Research Series, Cases I to X.) pp. 17-128. 20 pis. PROCEEDINGS. Vols. 1-56, $5 each. Discount to booksellers 25 , ; to Fellows 50%, or for whole sets lidThe individual articles may be obtained separately. A price list of recentarticles is printed on the inside pages of the cover of the Proceedings. (lomplete \Ynrks of ( omit Rumford. 4 vols., $ each. Memoir of Sir Benjamin Thompson, Count Rumford, with Notices of his Daughter. By George E. Ellis. $ sets of the Life and Works of Rumford. 5 vols., ; to Fellows, * For sale at the Library of Tin. A\iiki< w Academy OP Arts andSt m m i -. 28 Newbury Street, Boston, Massachusetts. MEMOIRS OF THE AMERICAN ACADEMY OF ARTS AND SCIENCES. Vol. XIV. —No. IV CAMBRIDGE :Ube Cosmos press August, 1923 IV. PHOTOMETRIC MAGNITUDES OF FAINT STANDARD STARS MEASURED VISUALLY AT HARVARD, YERKES, LICK AND McCORMICK OBSERVATORIES BY EDWARD C. PICKERINGJ. A. PARKHURSTROBERT G. AITKENHEBER D. CURTIS S. A. MITCHELLHAROLD L. ALDENT. McN. SIMPSONF. W. REED PREPARED FOR PUBLICATION BY S. A. MITCHELL Investigations on Light and Heat, published with aid prom the Rumford Fund. TABLE OF CONTENTS. Page. Intkoduction 213 Plan of Work 215 Choice of Standard Stars 215 Standards of Twelfth Magnitude 217 Measures of 12th Magnitude Stars at Harvard 220 The Wedge Photometer 229 Measures at Yerkes Observatory 231 Measures at Lick Observatory 239 Measures at Leander McCormick Observatory 24S Calibration of McCormick Wedge 249 Early McCormick Calibration Curve 251 McCormick Measures 14th Magnitude 257 McCormick Measures 15th Magnitude 263 McCormick Measures 14th to 16th Magnitude 269 The Conditions to secure Accuracy 273 Discussion of the Me
Size: 1584px × 1578px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthoramer, booksubjectarts, booksubjectscience, bookyear1783
