Alfred Barry, The life and works of Sir Charles Barry (1867)
“ The portico of the Pantheon he thought perfect in plan, and magnificent in effect. He admired its great depth, the increase of this in the centre, and above all the disposition of the inner columns, which gave apparent stability and variety of effect, without confusing the eye or obstructing the approach. He never could endure a portico which was shallow, or which had no inner columns, or which had the wall, the background of the columns, broken up by windows. But the junction to the circular building appeared to him unhappy. ”
