Archill
ARGOL, ORCHILL, or Company of London. rocella tinctoria and R. fusiformis, which grow in the Canary and Cape Verde Islands. They are found on rocks near the sea. They produce a fine but fugitive purple dye, and are largely employed for that purpose. Other lichens, such as the variolaria arcina, the lecanora purple dye, and are largely employed for that purpose. Other lichens, such of the rocella.
ARCHIMEDES (ar-ke-mēdēs), most famous of ancient mathematicians, was a native of Syracuse. He possessed equal knowledge of the sciences of astronomy, geometry, hydrostatics, mechanics, and optics. cics. Among his inventions were the combination of pulleys for lifting heavy weights, the revolving screw, and a spherical representation of the motion of the heavenly bodies. When Syracuse was taken by storm Archimedes was killed (212 в. c.). His burial place was afterward discovered by Cicero. Nine of the works of Archimedes have descended to posterity.