[texhax] Font Size Question

[Karl Berry]

    Thanks.  Can you tell me how you (or I) would know the defined font
    sizes for a given class, like your book class example?  Where do you
    look for such information, etc.  That is really what I need to know
    but have been unable to decipher it myself.

No guarantees, but I attempted to extract the size tables out of the
sources at one point for the unofficial latex reference manual I work on
from time to time.
http://svn.gna.org/viewcvs/*checkout*/latexrefman/trunk/latex2e.html#Font-sizes

Hope this helps,
karl