He also built another wear or barrier in the Danube, now called Tahtah-lú sedd, upon which many ships perish every year. It was when that river overflowed in the spring, that king Yánván opened the iron gate and the barrier, to allow the stream to pass down to Islámbúl, where it discharges itself into the White Sea, at the gate called Istirdiyah kapú-sí (the Oyster-gate), now Lan-ghah kapú-sí. All this was done by king Yánván during the absence of king Vezendún, who was gone on a pilgrimage to Jerusalem. On his return, his uncle Kójah Yánván went over to Scutari to meet him; and as soon as they met: “Well, my uncle,” said Vezendún, have you succeeded in your undertaking with regard to the Danube?”—“I dragged it, O king,” said he, “by the hair, like a woman, into Mákedúniyyah (Constantinople), through which it now runs.” Scarcely had he uttered this haughty answer, when, by the command of God, the river suddenly returned, deserting its new bed, and bursting forth in a large fountain, at a place called Dóna-degirmánlerí (the Mills of the Danube), between Várnah and Parávádí, where a mighty stream turns a great number of mills, which supply all the people of Dóbrújah with flour. Another branch of the Danube bursts forth near Kirk Kilisá (the Forty Churches), from the rocks of Bunár-hisár (Castle of the Source). A third branch broke out in the lakes of Buyúk and Kuchúk Chekmejeh, whence it unites with the Grecian (Rúmí) sea. The proof that all these streams have their source in the Danube is that they contain fish peculiar to that river, such as tunnies, sturgeons, &c., as I myself have more than once witnessed, when observing what the fishermen caught in the lakes just named. It is also mentioned in the historical work entitled _Tohfet_, that Yilderim Báyazíd (Bajazet) when he conquered Nigehbólí (Nicopolis) and Fet-h-islám, having heard of the ancient course of the Danube, caused straw and charcoal to be passed into it through the iron gate, and that they afterwards appeared again at the above-named lakes Bunár-hisár and Dónah-degirmánlerí. When travelling with the Princess Fatimah, daughter of Sultán Ahmed, and Suleïmán Beg, we stopped at the village of Azád-lí, between Chatáljeh and Islámbúl, where there are evident marks of the ancient channel of the Danube, cut by art through rocks towering to the skies. We penetrated into those caverns on horseback, with lighted torches, and advanced for an hour in a northerly direction; but were obliged to return by bad smells, and a multitude of bats as big as pigeons. If the sultáns of the house of ’Osmán should think it worth their while, they might, at a small expense, again bring the waters of the Danube by Yeníbághcheh and Ak-seráï to Islámbul.