Acetylene of 180°. Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". It was rediscovered in 1860 by French chemist Marcellin Berthelot, who coined the name "acétylène". Berthelot's empirical formula for acetylene (CH), as well as the alternative name "quadricarbure d'hydrogène" ("hydrogen quadricarbide"), were incorrect because chemists at that time used the wrong atomic mass for carbon (6 instead of 12). Berthelot was able to prepare this gas by passing vapours of organic compounds (methanol, ethanol, etc.) through a red-hot tube and collecting the effluent. He also found that acetylene was formed by
James Manning (scientist) Reader in 1982. Manning was "a shrewd and exceptional clinician – highly skilled at the laboratory bench – an excellent committee man – (with) diplomacy and breadth of experience". Manning married Grace O'Brien in 1943 and they had one daughter and four sons, one of whom is the British New Zealand atmospheric scientist, Martin Manning. James Manning (scientist) James Dermot Manning (born in Georgetown, British Guyana on 10 September 1917 and died in Wellington, New Zealand on 30 June 1989) was a surgeon, pathologist and public health administrator. He was a leading authority on the laboratory diagnosis of Toxoplasmosis. Manning