Talk:History of soil science

External links modified
Hello fellow Wikipedians,

I have just modified one external link on History of soil 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/20061219225438/http://soils.usda.gov/technical/manual/contents/chapter1.html to http://soils.usda.gov/technical/manual/contents/chapter1.html

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Cheers.— InternetArchiveBot  (Report bug) 05:46, 5 November 2017 (UTC)