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cloudy and rainy   [[preprinted]]FRIDAY, MARCH 31, 1865.[[/preprinted]]
Engaged in looking over the accounts for the month. Making out the pay roll.
Called at Riggs' got statement of the purchase of our stock - gold is higher to day then when Riggs received our payment from the Treas.
Dct. Wells has been appointed first of a commission of three to study the subject of taxation and to devise a tariff for next Congress.
Mr Blutchford from Chicago called. Will send him a piece of lead which has been subjected a pressure of many tons and another culled from the melting state without pressure to find if there be any condensation.

Mr. Patterson arrived in the evening. Does not give a very hopeful account of the condition of the national currency. 1000 millions of legal tender out. The government cannot afford to let the currency down rapidly
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Beautiful   SATURDAY, APRIL 1, 1865 [[/preprinted]]  day
letter from Mr Mayer giving account of Rungraph's remarks on the present [[?]] which is not the 10,000,000 parts of the distance from the equator to the poles.
Meeting of the Light House Board. Decision as to the security of a tower by leaving space around the base. Gen D. contends it was not necessary Col. B. took the other side - space could do no harm might do good question of large or overall expense - 
Discussion of the subject of force of waves

1 Waves in sheltered and in deep water have but little progressive motion.

2 In places exposed to the wind the waves has horizontal force whatever way be the bottom 

3 In a bottom inclined to the horizon like an inclined plane a part of the whole downward force is converted in to a horizontal one.

4 The form assumed by a beach is that which will enable it to withstand best the force of the waves in consideration of its natural constitution 

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