Arsenic http://redriverradio.org en History Matters: Arsenic through the times http://redriverradio.org/post/history-matters-arsenic-through-times <p>Commentator&nbsp;Gary Joiner mixes in some chemistry&nbsp;this week with&nbsp;his piece on the deadly consequences of&nbsp;arsenic through history.</p> Tue, 24 Jan 2012 13:35:00 +0000 Gary Joiner, Ph.D. 5813 at http://redriverradio.org History Matters: Arsenic through the times