<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="MSHTML 6.00.6000.16825" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY
style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"
bgColor=#c0c0c0>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV style="FONT: 10pt arial">
<DIV> </DIV></DIV><!--StartFragment-->
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><B><FONT
size=5>SECOND ANNOUNCEMENT – <O:P></O:P></FONT></B></P>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><B><FONT
size=5>20<SUP>th</SUP> <SPAN style="TEXT-TRANSFORM: uppercase">North American
Diatom Symposium<O:P></O:P></SPAN></FONT></B></P>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
color=#800000><FONT size=4><EM><SPAN
style="TEXT-TRANSFORM: uppercase"><B>REGISTRATION/ABSTRACT DEADLINE AUG
1</B></SPAN><B><O:P></O:P></B></EM></FONT></FONT></P>
<DIV class=MsoNormal><FONT size=5><O:P></O:P></FONT></DIV>
<DIV class=MsoNormal align=center><A
href="http://www.northamericandiatomsymposium.org"><FONT
size=5>www.northamericandiatomsymposium.org</FONT></A><O:P></O:P></DIV></BODY></HTML>