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In the evening I attended the meeting of the National Insti tute at the Presbyterian Church in 4% Street, and heard a dis course, by A. D. Bache, on the History of Science in Europe and America; an essay on the Indian Summer, by Professor Jacobs, of Gettysburg, Pennsylvania; and an account of the petrified forest near Cairo in Egypt, by Dr. A. D. Chaloner, of Philadelphia. The Secretary of the Treasury, J. C. Spencer, presided at the meeting, and the new Secretary of State, John C. Calhoun, was there. I shook hands with him in silence.
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