Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Lucid
Lucid as a Japanese sphere of rock-crystal.
—Oliver Wendell Holmes
Lucid and lovely as the morning star.
—John Logan
Lucid as the dawn.
—John Skelton
Lucid as daylight.
—S. G. Tallentyre
Lucid as air.
—John Wilson