Results for "Smithsonian Institution. Environmental Sciences Program"
Smithsonian Budgets $1,000 for Meteorology Program
- Date: March 19, 1848
The Smithsonian and the Civil War
- Date: April 12, 1861 Civil War, 1861-1865
Balloonist Ascends from Smithsonian Grounds
- Date: June 18, 1861 Civil War, 1861-1865
Daily Weather Map Displayed at Smithsonian
- Date: 1858
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
Notes on the Operation of Telegraph Lines
- Date: c. 1850
- Creator: Vail, Alfred
- Creator: Vail, Alfred
George Ashley Campbell (1870-1954)
- Date: July 17, 1935
Cover of Alfred Vail's Experiment Notebook
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Alfred Vail's Electromagnetic Telegraph Notes
- Date: 1848
- Creator: Vail, Alfred
- Creator: Vail, Alfred
Joseph Henry Advises Samuel Morse on Telegraph
- Date: February 24, 1842
Alfred Vail's Drawing of Many Circuits with One Battery
- Date: c. 1844
- Creator: Vail, Alfred
- Creator: Vail, Alfred
