e a blank, then 
              SIZE will be set to 1. 
 
   found      is a logical variable indicating success of the 
              request to retrieve the nth string associated 
              with item.  If an nth string exists, `found' will be 
              set to SPICETRUE; otherwise `found' will be set to
              SPICEFALSE.
 </PRE>
<h4><a name="Parameters">Parameters</a></h4>
<PRE>
 
   None. 
 </PRE>
<h4><a name="Exceptions">Exceptions</a></h4>
<PRE>
 
   1) If the variable specified by item 