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National Academy of Science,

A scientific organization incorporated by act of Congress, March 3, 1863; first meeting April 22, 1863, Alexander D. Bach first president; duties consist in the investigation, examination, experimenting, and reporting on any subject of science and art. The actual cost of investigation, etc., is paid for by the United States government; no other compensation is received. At first the number of members was limited to fifty—since 1870 to 100; a limited number of foreign members are admitted.

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