Results for "Smithsonian Institution. Office of the Secretary. Assistant to the Secretary"
Joseph Henry Elected First Smithsonian Secretary
- Date: December 3, 1846
Alfred Vail's Letter to Joseph Henry (July 17, 1846)
- Date: July 17, 1846
- Creator: Vail, Alfred,Joseph Henry Papers Project
- Creator: Vail, Alfred,Joseph Henry Papers Project
Morse Claims Henry's Work in Electromagnetism Did Not Contribute to Invention of Telegraph
- Date: July 19, 1854
Joseph Henry's Letter to George Mifflin Dallas (August 12, 1847)
- Date: August 12, 1847
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
Joseph Henry's Letter to George Mifflin Dallas (August 12, 1847)
- Date: August 12, 1847
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
George Mifflin Dallas' Letter to Joseph Henry (August 6, 1847)
- Date: August 6, 1847
- Creator: Dallas, George Mifflin 1792-1864,Joseph Henry Papers Project
- Creator: Dallas, George Mifflin 1792-1864,Joseph Henry Papers Project
Letter from Samuel Morse to Alfred Vail, January 15, 1857
- Date: January 15, 1857 19th century
- Creator: Morse, Samuel Finley Breese 1791-1872
- Creator: Morse, Samuel Finley Breese 1791-1872
Replica of Joseph Henry's Princeton Oscillating Electromagnet Motor
- Date: c. 1830s
- Creator: Unknown
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Telegraph Sounder
- Date: Undated
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Armature
- Date: Undated
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Suspended Armature
- Date: Undated
- Creator: Unknown
Joseph Henry Electromagnet Equipment - Galvonometer
- Date: Undated
- Creator: Unknown
