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Log

Page	Plate	Class	Object	R.A.	Dec	Start	Obs H.A.	Obs Dec	Stop	Exp	Date	Miscellaneous
64											Aug 28 1912	List of mirrors by means of apparatus described on page 23. Wedge 877415 used. Extra prism of blue glass was used as the primary mirror & very tarnished. The secondary mirror is in good condition. Reading 1. 18.4, 19.1, 18.8, 19.0, 18.8 = 94.1 / 5 = 18.8. Reading 2. 18.4, 18.7, 18.0, 18.6, 19.2 = 92.9 / 5 = 18.6. Reading 2 TK. 19.0, 18.6, 18.1, 18.0, 17.5 = 18.2.