Joseph Henry's Letter to George Mifflin Dallas (August 12, 1847)
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Request permissionsDownload image PrintLetter from Joseph Henry, first Secretary of the Smithsonian Institution, to George Mifflin Dallas, Vice President of the United States, August 12, 1847. In the letter, Henry responds to Dallas's inquiry about the danger of a lightning strike to a proposed mast and lantern set to be erected in the United States Capitol Building's dome. Henry states that the fixture would increase the likelihood of a lightning strike to the dome.
Historic Images of the Smithsonian
The accompanying PDF contains SIA2012-0452 and SIA2012-0453, which are pages scanned from the edited transcript of the original version and notes in the Joseph Henry Papers Volume 7, pages 161-162 (Document 90).
Institutional History Division, Smithsonian Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu
August 12, 1847
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SIA2012-2929 and SIA2012-2930 and SIA2012-2931
Number of Images: 3 ; Color: Color ; Size: 5 3/4w x 8 1/2h ; Type of Image: Document ; Medium: Paper