Telegraph-History
articles focusing on U.S. telegraph history
http://www.telegraph-history.org
History of the Atlantic Cable & Submarine Telegraphy
Society, History, By Topic, Science - History of the Atlantic Cable Submarine Telegraphy. Traces the history of undersea cable communications, from the first telegraph cables used in 1850 to the fiber optic cables used today for the Internet.
https://atlantic-cable.com/
Old scientific Instruments
Old scientific instruments and books from 15th to 18th century, Astrolabes, Dividers, Rulers, Drawing Instruments,Graphometer, Scientific Books, Geometry, Practical Geometry, Tables, Land Surveying, Euclides, Regiomontanus
https://www.geometricum.com/
The Thomas A. Edison Papers
Society, History, By Topic, Science - Thomas A. Edison Papers. Information and documents about Edison's life and career including his years as a telegrapher and inventions in the field of telegraphy.
https://edison.rutgers.edu/
History of Anaesthesia
Society, History, By Topic, Science - History of Anaesthesia. GASMAN - A Personal History of Anaesthesia.
http://www.johnpowell.net
The Society for the History of Technology
Society, History, By Topic, Science - Society for the History of Technology. Encouraging study of the history of technological devices and processes, as well as the relations of technology to science, politics, social change, the arts and humanities, and economics.
https://shot.press.jhu.edu/
Marconi Calling
Society, History, By Topic, Science - Marconi Calling. The life, science and achievements of Guglielmo Marconi.
http://www.marconicalling.com/