Arthur, Please investigate for us, in the mean time you might find the following URL interesting.
http://www.magnet.ch/serendipity/hermetic/cal_stud/cassidy/err_trop.htm Luke
Arthur, Please investigate for us, in the mean time you might find the following URL interesting.
http://www.magnet.ch/serendipity/hermetic/cal_stud/cassidy/err_trop.htm Luke