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[[page number pre-printed top left]] 16 1881- Jan 31 1 Astronomical Clock. for mean Solar time with Prof. Youngs New Gravity Escapement - A Duplicate of Prof. Youngs Clock- To be done Sept. 1st.- Contacts 1st 2 seconds break 2nd Minute " 3 To break on the 54th & 60th Beat.. (See letter of Feb 25th) Prof. Wm. A. Anthony. Cornell University. Ithaca, N.Y.