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210 July 23, 1908. Exam. of plates for variation if any in BD-1°1012 3^[[h]] 55^[[m]] 50.8^[[s]] -1° 40.0 (1855). See letter of J.H. Astbury. [[image]] Chart from B26200 [[image]]Copy of chart J.H.A. [[3 column table]] | Plate | Date | Ex | | --- | --- | --- | | B26200 | 00, 9, 17 | 10^[[m]] | | B26639 | 00, 11, 17 | 10 | | AC 8103 | 06, 12, 16 | 70 | | AC 8223 | 07, 2, 8 | 72 | | AC 8309 | 07, 2, 27 | - | | AC 8327 | 07, 3, 7 | 91 | | AC 8386 | 07, 4, 2 | 60 | | AC 8883 | 07, 10, 16 | 73 | | AC 9025 | 07, 11, 28 | 60 | | AC 9113 | 07, 12, 28 | 49 | | AC 9139 | 08, 1, 3 | 63 | | AC 9181 | 08, 1, 16 | 60 | | AC 9205 | 08, 1, 27 | 60 | | AC 9244 | 08, 2, 7 | 60 | | AC 9253 | 08, 2, 8 | 60 | | AC 9307 | 08, 3, 3 | 72 | | AC 9359 | 08, 3, 24 | 60 | | AC 9373 | 08, 4, 1 | 63 | [[3 column table]] | -08 | 1 | 27 | | | 1 | 31 | | | 2 | 1 | | | | 3 | | | | 20 | [[3 column table]] | Plate | Date | Ex | | --- | --- | --- | On receipt of letter of July 17, these plates were reviewed and no ^[[appreciable]] variation found in any of the star images between zeta Orions and -1°1004. Plate AC622, taken Dec. 26, 1899, heavy 2.3 exposures was also examined. W.P.F. An exam of the above plates fails to show any evidence of variation in -1°1012 exceeding 0.4 or 0.5 magn, which diff might be due to photographs. Astbury chart for y and z must be in error as no stars appear on any of the plates in these positions. The supposed variation is always fainter than a and b and brighter than c and d. W.P.F.