Talk:1817 in science

External links modified
Hello fellow Wikipedians,

I have just modified one external link on 1817 in science. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20110721020838/http://www.brewstersociety.com/brewster_patent.pdf to http://www.brewstersociety.com/brewster_patent.pdf

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Cheers.— InternetArchiveBot  (Report bug) 09:20, 14 June 2017 (UTC)