 Notice the crowned"M" and the serpent (symbol of evil) being trodden underfoot in both pictures, as well as other symbols drawn from the "Revelation of St. John the Divine".The third window, from the William Morris Studio, shows Christ as "Christus Rex", or "Christ the King", and is a memorial to a sister of Robert, William and Thomas Harris, Margaret Ellin Harris (1854 - 1944) and her husband, William Lawson Cotton, 1848 - 1928.It also has a serpent.