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Looking for Ways to Beat the Weeds (NYT), Change Log

http://www.nytimes.com/2013/07/16/science/earth/looking-for-ways-to-beat-the-weeds.html

By CARL ZIMMER | First archived on July 15, 2013, 6:43 p.m.

Headline Date/Time EST Archived Diff
Looking for Ways to Beat the Weeds July 16, 2013, 11:14 p.m. (Compare with previous)
Looking for Ways to Beat the Weeds July 16, 2013, 2:06 p.m. (Compare with previous)
Looking for Ways to Beat the Weeds July 15, 2013, 11:12 p.m. (Compare with previous)
Looking for Ways to Beat the Weeds July 15, 2013, 6:56 p.m.