Newcomb, Simon. 1835-1909. *B.145.2.N.S. 21 A search for fluctuations in the sun’s thermal radiation through their influence on terrestrial temperature. Charts. (In American Philosophical Society. Transactions. New series, vol, 21, pp. 309-387. Philadelphia. 1908.)
[This work is kept on the Special Libraries Floor.]
  
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\ This card was printed at the Boston es Public Library, November 10, 1909. Hrgo1 — Sun. Heat.