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144 [[underlined]]February 8, 1907.[[/underlined]] Exam. of Plates to det. variation in A.G.C. 16865. =Z.C. 12^[[h]] 1003 R.A. 12^[[h]] 16.0^[[m]] Dec. -74° 47' (1875). A.G.C. magn. 9.5. 12 17.4 -74 57 (1900). Not in C.P.D. Sp Na var [[strikethrough]]?[[/strikethrough]] on A7583 No. 522. [[4 columned table]] Plate|Date|Ex|Est.| |---|---|---|---| |A44[[strikethrough]]4[[/strikethrough]]00|May 23, 1900|240|9.2| |B33566|May 3, 1904|10|9.3| |B[[strikethrough]]5[[/strikethrough]]33100|Feb. 23, 1904|10|9.3| |B35670|March 29, 1905|10|9.9| |B29436|April 26, 1902|10|9.0| |B27004|March 28, 1901|10|8.8| |B249[[strikethrough]]3[[/strikethrough]]73|April 6, 1900|10|10.2| |B22444|April 4, 1899|10|10.4| |B21548|May 31, 1898|10|9.8| |B21125|April 2, 1898|10|10.5| |B18901|April 22, 1897|10|9.2| |B9301|May 2, 1893|13|10.5| |B16217|June 10, 1896|10|9.5| |B31604|May 4, 1903|10|9.9| |B23488|July 17, 1899|10|10.6| |B26992|March 23, 1901|65|9.0| An examination of the above plates shows a variation of about 1.8 magn. Approx. limits, 8.8 to 10.6 W.P.F. John G. Wolbach Library, Harvard-Smithsonian Center for Astrophysics . Provided by the NASA Astrophysics Data System