Results for "Washington (D.C.)"
Robert M. Patterson's Letter to Joseph Henry (June 8, 1846)
- Date: June 8, 1846
- Creator: Patterson, Robert M (Robert Maskell) 1787-1854,Joseph Henry Papers Project
- Creator: Patterson, Robert M (Robert Maskell) 1787-1854,Joseph Henry Papers Project
Lewis R. Gibbes's Letter to Joseph Henry (June 30, 1845)
- Date: June 30, 1845
- Creator: Gibbes, Lewis R,Joseph Henry Papers Project
- Creator: Gibbes, Lewis R,Joseph Henry Papers Project
Victor B. Elstad and William H. Klein
- Date: c. 1961
- Creator: Unknown
- Creator: Unknown
Joseph Henry's Letter to John Wise (July 1873)
- Date: July 1873
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
Drawing of the Electromagnetic Telegraph and Alpha Code
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Sketch of Circuits Using One Battery
- Date: April 15, 1844
- Creator: Vail, Alfred,Morse, Samuel Finley Breese 1791-1872
- Creator: Vail, Alfred,Morse, Samuel Finley Breese 1791-1872
Electromagnet Made by Joseph Henry
- Date: 1978
- Creator: Unknown
- Creator: Unknown
Diary of Alfred Vail, September 8 and 9, 1848 Entries
- Date: September 8-9, 1848
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Alfred Vail's Drawing of Many Circuits with One Battery
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Joseph Henry's Letter to Harriet Henry (August 1, 1837)
- Date: August 1, 1837
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
Charles Phillips Letter to Joseph Henry (June 14, 1845)
- Date: June 14, 1845
- Creator: Phillips, Charles,Joseph Henry Papers Project
- Creator: Phillips, Charles,Joseph Henry Papers Project
Joseph Henry's Letter to Alexander Dallas Bache (March 19-27, 1839)
- Date: March 19-27, 1839
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
- Creator: Henry, Joseph 1797-1878,Joseph Henry Papers Project
