All of this was due to the atmospheric magic of the continued glory of midnight suns in throwing piercing beams of light through superimposed strata of air of varying temperature and density.
"My Attainment of the Pole"
Frederick A. Cook
His face was hard, but there was a rugged honesty in it, a touch of the old Scots' stock from which he sprang, with the superimposed keenness and alertness of the trail-following American.
"I Walked in Arden"
Jack Crawford
Now the unlikely idea of a superimposed mirage was dispelled.
"Eight Keys to Eden"
Mark Irvin Clifton