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[[preprinted]]MONDAY, DECEMBER 4, 1865.[[/preprinted]]
correspondence --
Attended meeting of Light House Board - Stated that I wished to purchase out of the appropriation for Fog Signals a Roper Engine
Promised to give Mr Mansfield some of our job printing provided he will do it as cheap & as well as others.

The concussion of the waves against the side of the Minot's Ledge L H cause a vessel containing oil to wash over when the liquid is for or 5 inches below the rim. A tremor is also produced but not an oscillation  These results were thought contradictory but they are not 
the molecular wave will give the motion incumbent to the oil.
-----------I Built a [[?]] with a [[?]] tube
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[[preprinted]]TUESDAY, DECEMBER 5, 1865.[[/preprinted]]
engaged in experiments with Dr W.
Also in correspondence.
architect informs me that he is having the work on building to a close as safely as possible
Mrs H and myself invited to dine at Mr Chambers to meet Mrs Astor.
Wrote to William Westley our agent in London to order books for the Chicago Academy and also to forbid him to transmit any thing without an order from me which is purchased and may be subject to duty.