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
Tithe Commutation Act 1836 Tithe Commutation Act 1836 The Tithe Commutation Act 1836 (6 & 7 Will 4 c 71) was an Act of the Parliament of the United Kingdom with the long title "An Act for the Commutation of Tithes in England and Wales". It replaced the ancient system of payment of tithes in kind with monetary payments. It is especially noted for the tithe maps which were needed for the valuation process required by the Act. British Parliamentary Paper 1837 XLI 405 was published to give guidance on how landscape features were to be indicated on the maps. It is entitled ′Conventional