Dr. Horace Wells, who practiced dentistry in Hartford, Conn., in the 1840s, was an early booster for the use of nitrous oxide as an anesthetic.
http://www.gpb.org/news/2013/06/26/laughing-gas-gets-a-safety-check?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+GPBNewsFeed+%28GPB+News%29
http://www.gpb.org/news/2013/06/26/laughing-gas-gets-a-safety-check?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+GPBNewsFeed+%28GPB+News%29
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