extsizes update (10jul07)

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+The standard Latex classes (article, report etc) support ten, eleven and
+twelve point text. These are the commonest sizes used in publishing.
+However, for certain applications there may be a need for other sizes.
+The extsizes classes (extarticle, extreport, extbook, extletter, and
+extproc) provide support for sizes eight, nine, ten, eleven, twelve,
+fourteen, seventeen and twenty points.
+
+The extsizes classes and class options were first written by Wolfgang
+May, by adapting the standard Latex classes. James Kilfiger
+made some modifications and rewrote the size options. 
+
+Should you be using extsizes?
+Don't use extsizes just because you think its cool, or because you think
+the font looks too small on the screen.  You should have a clear reason
+why 10,11 or 12pt text is not suitable for you.  Also the extsizes
+package is not suitable for creating oversize pages for scaling by a
+printer or photocopier, this can be done with the the geometry package
+and the mag option (another of my hacks I'm afraid).  Good reasons for
+using the extsizes package might include conforming to requirements set
+by an examining institution, or making a large print copy for use by the
+partially sighted.
+
+How to install extsizes.
+You should place all the files in `a place where Tex can find them'.
+Examples of where Tex looks for files include the .../texmf/tex/latex
+directory tree, a local texmf tree, anywhere specified in a TEXINPUTS
+environment variable or the same directory as your Latex documents.  
+You should then refresh the file name database. This is done with a
+command `texhash' on tetex distributions and from the start menu with
+miktex.   For other distributions of tex read the manual to see if this
+step is required.
+
+How to use extsizes.
+Your documentclass command should look like:
+	\documentclass[14pt]{extreport}
+or 
+	\documentclass[9pt]{extarticle}
+The sizes available are 8pt, 9pt, 10pt, 11pt, 12pt, 14pt, 17pt, and 20pt.
+There should be no need to change any other part of your document.
+
+There is also a package, extsizes.sty, which can be used with
+nonstandard document classes.  But it cannot be guaranteed to work with
+any give class.  Don't use it at the same time as one of the extsizes
+classes. It takes as package options 8pt--20pt.  This comes from an idea
+of Hans Steffani.
+
+Compatibility mode broken.
+You cannot use these classes in `compatibility mode', nor can they be
+used with latex 2.09.  Therefore \documentstyle[20pt]{extarticle} won't
+work.  Compatibility mode should not be used for new documents.
+
+Bad line breaking.
+If you are using 20pt text Tex will probably have difficulty finding
+good line breaks, so you will get warnings about overfull hboxes.  
+If this is distracting you may put \sloppy in the preamble of your
+document, but it is better to try to help Tex to find good line breaks
+by inserting \- or rewriting short sections.
+
+Warnings about Font substitutions.
+The large class options use some very large fonts. Up to about 50pt for
+the 20pt class options.  You may find this causes problems with with
+if these fonts are not declared to be available by a \DeclareFontShape
+command.  You should either use fonts like Times which are usually
+available in all sizes, or redeclare the fonts.  There is an example of
+this in the extsizes classes for cmr.  You should also read fntguide.
+
+	James
+		james.kilfiger@gmail.com
+        Wolfgang 
+                may@informatik.uni-goettingen.de 
+  (in case the addresses become invalid in the future, 
+   look us up in the Web)