 cousins), it <em>automatically</em> creates a new size object for the
    returned face.  This size object is directly accessible as
    <tt>face&minus;&gt;size</tt>.</p>

    <p><em>NOTE: A single face object can deal with one or more size
    objects at a time; however, this is something that few programmers
    really need to do.  We have thus decided to simplify the API for the
    most common use (i.e., one size per face) while keeping this feature
    available through additional functions.</em></p>
