Among the earlier buildings of this period is the Horologium The Horo- of Andronicus of Cyrrhus (the " Tower of the Winds"), logium of still standing near the eastern end of the Roman Agora.
The invention dates from 1656; on the 16th of June 1657 Huygens presented his first "pendulumclock" to the states-general; and the Horologium, containing a description of the requisite mechanism, was published in 1658.
The Horologium oscillatorium, published with a dedication to his royal patron in 1673, contained original discoveries sufficient to have furnished materials for half a dozen striking disquisitions.
Sherburne states that Recorde also published Cosmographiae isagoge, and that he wrote a book De Arte faciendi Horologium and another De Usu Globorum et de Statu temporum.
Weston (1730); Huygens, Horologium Oscillatorium (1673); Newton, Philosophiae naturalis principia mathematica (1687; translation by A.
ANDRONICUS OF CYRRHUS, Greek astronomer, flourished about ioo B.C. He built a horologium at Athens, the so-called "tower of the winds," a considerable portion of which still exists.
79 restored the horologium of the town and its architectural decoration.
This is expressed on the Horologium of Andronicus Cyrrhestes, called the Temple or Tower of the Winds, at Athens, where Boreas is represented as a bearded man of stern aspect, thickly clad, and wearing strong buskins; he blows into a conch shell, which he holds in his hand as a sign of his tempestuous character.