Emacs and Unicode

I have posted this question to emacs-help following Andrew Choi=20
suggestion, but I din=B4t got an answer to my problem.

I would like to use emacs21 with Tei in order to tag  some ancient=20
greek texts in XML. The texts are in UTF-8, and emacs 21.3.50.1 is not=20=

displaying them properly.

Now Jaguar has several fonts that can display unicode like Lucida=20
Grande for example. I was able to change the default font to times=20
using (set-default-font "-apple-times-*-12-*-mac-roman"), but I fail to=20=

change the default font to Lucida Grande.  I can't figure out how to=20
write Lucida Grande in .emacs.
I tried "lucidagrande" "lucida grande" and so on, but got always the=20
same error:

"Font `-apple-lucida grande-*-12-*-mac-romaN' is not defined"


  some hints?



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