MANDROCLES' BRIDGE ACROSS THE BOSPHORUS.
Mandrocles, probably a Greek architect in the service of Darius, King of Persia, who flourished about B. C. 500, acquired a great name for the bridge which he constructed across the Thracian Bosphorus, or Straits of Constantinople, by order of that monarch. This bridge was formed of boats so ingeniously and firmly united that the innumerable army of Persia passed over it from Asia to Europe. To preserve the memory of so singular a work, Mandrocles represented in a picture, the Bosphorus, the bridge, the king of Persia seated on a throne, and the army that passed over it. This picture was preserved in the Temple of Juno at Samos, where Herodotus saw it, with this inscription:—"Mandrocles, after having constructed a bridge of boats over the Bosphorus, by order of the king Darius of Persia, dedicated this monument to Juno, which does honor to Samos, his country, and confers glory on the artificer."