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172
September 28, 1907.

Exam. of plates to record confirmation of variability of BD+ 74°861. R.A. 20h 26m 25s Dec. +74° 47.5' 9.3 (1855). Sp. Mc5d. var? on I 32012, No. 4704a.

[[4 column table]]
|Plate|Date|Ex.|Est.|
|Sp. I32012| Sept. 5, 1904|81m|8.5| Mc5d. var?
|[[symbol - checkmark]] I31078|Oct. 28, 1903 [[3 checkmarks]]|10|8.5|
|I14408|Jan 30, 1896|10|10.5|
|I27393|Aug. 29, 1901|4.8|10.1|
|I16429|Nov. 2, 1896|10|10.4|
|I29120|Aug. 16, 1902|10|10.1|
|I20367|March 5, 1898|18|10.0|
|I29278|Sept. 14, 1902|11|[[strikethrough]]9.7 9.9[[/strikethrough]]|
|I30340|April 19, 1903|33|8.4|
|I11710|Oct. 18, 1894 [[3 checkmarks]]|10|10.3|
[[/4 column table]]

An examination of the above plates shows a variation of about 2.2 magnitude. Est. limits 8.3 to 10.5. Variability confirmed by L.D. Wells. 

W.P.F Sept. 28, 1907.