Changes to the AGU style files art-jgr.sty and art-grl.sty Version 4.3, 1993 October 22 The routine to balance two columns on last page produced an underfull vbox message. This did not do anything bad, but the message is now remove by including a \vfil at the appropriate spot. For the sublabelling feature, it was necessary to redefine \ref. In version 4.2, the new definition included an unwanted space because of a missing %. This has now been corrected. Also in sublabelling: there was a bug that prevented the very first figure or table from being sublabelled. This has been corrected. In the GRL style, there were some \small's present, which should not be so. GRL sets everything in one size. These have been removed. Patrick W. Daly Max-Planck-Institut f\"ur Aeronomie Postfach 20 D-37189 Katlenburg-Lindau Germany E-Mail: Span- nsp::linmpi::daly (NB nsp==former ecd1) Internet- daly@linmpi.dnet.gwdg.de