parseXML

Can parseXML serve the purpose of extracting just the text (or content) from a node?

If my XML structure is:
<one value=“1”>
<onePointFive>1.5</onePointFive>
<onePointSeven>1.7</onePointSeven>
</one>
<two value=“2”>
<twoPointFive> …

I would like to get the values of 1.5 and 1.7 after having done a search for <one value=“1”>. Any suggestions?