Dear Rebecca,<br /><br />Sorry it's taken me a while to respond -- I dropped everything so as&nbsp;to get right to work on the paper as soon as I received your comments, and am only now getting back to normalcy.<br /><br />As usual, your comments were spot on -- frrehead-slappingly so. Start with the Hulunbeir -- of course! &nbsp;It makes more sense, and it makes for better reading.&nbsp;<br /><br />The revised paper is far better, and once again, I have you to thank.<br /><br />Thomas