SECOND ANNOUNCEMENT – 20th North American Diatom Symposium REGISTRATION/ABSTRACT DEADLINE AUG 1 www.northamericandiatomsymposium.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://webmail.fcnym.unlp.edu.ar/pipermail/lista-algas/attachments/20090529/3eb49372/attachment.html>