For those interested, I have added a previously missing page to the collection of articles written by John M. Pierce in "Science and Mechanics." The general URL is http://www.considine.net/mac/johnmpierce/ and the URL for the page itself is http://www.considine.net/mac/johnmpierce/JMP04ESM1233p911.TIF It is a 1M TIF file. Regards, Matt Considine