Howard, Frank: The sketcher's manual: or, the whole art of picture making reduced to the simplest principles by which amateurs may instruct themselves without the aid of a master (London, 1841)

34 PICTORIAL EFFECT.

If a distant view of an island or mountain,,
perhaps surmounted by a tower, as St. Michael's
Mount, Cornwall, be the subject: it should not
occupy the centre of the drawing; the tower
should not be equidistant from the two sides; and
if a dark spot, as an animal, be introduced to
bring out the foreground; it should not be in the
middle.

But the horizon should be about one-third of
the height of the drawing; the subject should
occupy a prominent situation on one side, and the
point, to give spirit to the foreground, should be
placed on the other (Plate XIX).