Vertical text

[Peter Clark]

        Is it possible to have a portion of a text turned 90 degrees (clockwise), 
with the letters and the text itself running from top to bottom? The rest of 
the text, of course, would be standard horizontal left-right text. A search 
on CTAN didn't turn up anything, but I image that there is a .sty running 
around somewhere that could handle this.
        :Peter