For the statues the artists of this period preferred the black and grey basalt to granite. In the dimensions, sculpture as well as architecture remained far behind the period of the ancient kingdom, behind the period of the Tuthmosis and Amenophis, of Sethos and Ramses. The son and successor of Psammetichus, who was called Necho after his grandfather, followed in the path which his father had pointed out and opened. He paid especial attention to the foreign trade, the arming of Egypt on the sea. He hastened to create a navy for Egypt on the Mediterranean and the Red Sea. Herodotus observes that he had himself seen the docks for the ships on his journey to Egypt.[578] Egypt was stronger by sea if the same fleet could be used on the Mediterranean and the Red Sea. Thus Necho came back to the views of Ramses II., to the great canal for uniting the Nile with the Red Sea. By this the trade of Egypt with South Arabia, and the trade on the Arabian Gulf, was brought into direct connection with the marine trade of the Mediterranean. Necho took up the excavation of the canal commenced by Ramses II., which was at that time carried as far as the region of the Bitter Lakes. The excavation was first to be carried eastward as far as the Bitter Lakes, and from this point the land was to be pierced in a southerly direction as far as the apex of the Red Sea. At the same time the canal was to be widened, and the new watercourse made so broad, that two triremes could easily find a place side by side--an undertaking worthy to be placed by the side of the buildings of the ancient kings. The old canal was soon excavated more completely, the Bitter Lakes were reached,[579] but the reach from this point to the Red Sea remained unaccomplished, though the work was carried on so vigorously and even ruthlessly that, according to Herodotus, 120,000 men perished there in the desert. According to Herodotus too, a prophecy induced the king to desist from the completion of the canal: it was announced to him that he was working for barbarians, but Strabo, with greater probability, states that the death of the king interrupted the work.