Joseph Henry's Letter to Ephraim George Squier (April 24, 1849)

Usage Conditions Apply
The Smithsonian Institution Archives welcomes personal and educational use of its collections unless otherwise noted. For commercial uses, please contact
Request permissions Download image Print

Narrow Your Results


Filter Your Results

Smithsonian Secretaries Information

Close Browse records and papers of the Smithsonian Secretaries, from 1846 until today. Pre-set filters help narrow searches by individuals who have held that office.

Expeditions Information

Close Browse records and papers documenting scientific and collecting expeditions either affiliated with the Smithsonian, or with which Smithsonian researchers participated. Pre-set filters help narrow searches by geographic regions predominantly represented in expedition records.

Professional Societies Information

Close Browse records of professional societies closely associated with the Smithsonian, that focus on areas of scientific research and museum studies. Pre-set filters help narrow searches by major topics and disciplines.


Letter from Joseph Henry, first Secretary of the Smithsonian Institution, to Ephraim George Squier, an archaeologist, April 24, 1849. In the letter, Henry agrees to send instruments for Squier to use in collecting earthquake data on his expedition to Guatemala.


Squier, E. G (Ephraim George) 1821-1888


Historic Images of the Smithsonian


2 pages scanned from the edited transcript of the original version and notes in the Joseph Henry Papers Volume 7, pages 510-511 (Document 288).

Contained within

Rothenberg, Marc, et al, eds., The Papers of Joseph Henry, Volume 7, The Smithsonian Years: January 1847-December 1849 (Washington: Smithsonian Institution, 1996), 510-511

Contact information

Institutional History Division, Smithsonian Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520,


April 24, 1849

Restrictions & Rights

No restrictions


  • Archaeology
  • Scientific expeditions
  • Earthquakes
  • Scientific apparatus and instruments
  • Secretaries
  • Letters
  • Expeditions
  • Guatemala
  • Archaeologists




  • Document
  • Paper

ID Number

SIA2012-1020 and SIA2012-1021

Physical description

Number of Images: 2 ; Color: Black and White ; Size: 7w x 10h ; Type of Image: Document ; Medium: Paper

Full Record

View Full Record