ge Accident. on the right of which is the private office, containing a large diately the current is broken the friction is sufficient to A serious accident, resulting in the death of two men, re- library of scientific works. Beyond these there is a large stop the spring. room containing materials… … the carbon relay, the progenitor of all existing carbon tele- dent will delay progress on the bridge for a few weeks. microphones,”—and—othereinssruments-dependent phones, ‘‘ THERMO-TELEPHONE. on the changeable conductivity of carbon under a varying Mill Explosion Science, The best solution for…
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from Six lectures on light [electronic resource] : delivered in the United States in 1872-1873 (1882)](https://img.insideoutlibrary.com/img/200/ia-b21641456-50-0.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-55-56.webp)