*** Paper size, paper orientation, columns<BR>
The variable `ps-paper-type' determines the size of paper ps-print
formats for; it should contain one of the symbols:
`a4' `a3' `letter' `legal' `letter-small' `tabloid'
`ledger' `statement' `executive' `a4small' `b4' `b5'
It defaults to `letter'.
If you need other sizes, see the variable `ps-page-dimensions-database'.
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The variable `ps-landscape-mode' determines the orientation
of the printing on the page.  nil, the default, means "portrait" mode, 
non-nil means "landscape" mode.
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The variable `ps-number-of-columns' must be a positive integer.
It determines the number of columns both in landscape and portrait mode.
It defaults to 1. 
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