Fern fronds are the leaves of ferns. They are a major organ of a fern and range significantly between species. Some species of tree ferns have fronds that grow as large as 5 m long while other species are limited to growing frond only 1 cm in length.
Cerium is a soft, ductile, silvery-white metallic chemical element with symbol Ce and atomic number 58. Cerium tarnishes when exposed to air, and it is soft enough to be cut with a knife. Cerium is the second element in the lanthanide series, and while it often shows the +3 state characteristic of the series, it also exceptionally has a stable +4 state that does not oxidise water.
GREEK MYTHOLOGY. Hermes, the messenger god on Mount Olympus, had a magic wand called a Caduceus, which was given to him by Apollo. The Caduceus is a rod or staff framed by two intertwined snakes; at the top of the staff are two wings. The Caduceus symbolizes the spinal column, the central conduit for the Psychic Force, or nerve energy, which animates all the organs and members of the body.