Discovery by Horace Wells of the applicability of nitrous oxyd gas, sulphuric ether and other vapors in surgical operations nearly two years before the patented discovery of Drs. Charles T. Jackson and W.T.G. Morton.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

Discovery by Horace Wells of the applicability of nitrous oxyd gas, sulphuric ether and other vapors in surgical operations nearly two years before the patented discovery of Drs. Charles T. Jackson and W.T.G. Morton. Public Domain Mark. Source: Wellcome Collection.