Xpath AndExpr on attribute values?

Can somebody please help me out with the right syntax for an
Xpath expression that does a logical AND on the values of two
attributes of the same element? I can get examples strictly
modelled on Mike K. p 334-335 to work, but they don't cover my
case.

Where I have stuff like
<text>
 <saying language="en" topic="morals">blah blah blah</saying>
 ...
</text>

I want to do something like
<xsl:apply-templates select="text/saying[@language='en'] and
text/saying[@topic='morals']"/>

but that gives me

org.apache.xalan.xpath.XPathException: Can not convert #UNKNOWN
to a NodeList!

What am I doing wrong?

Michael
-------
Michael Beddow
University of Leeds UK




 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list