When the power of the Romans was extinguished in Egypt, and the Mahomedans had gained possession of that country, Aden, which had been destroyed by the former in the reign of Claudius, resumed its rank as the centre of the trade between India and the Red Sea. In this situation it was found by Marco Polo. The ships which came from the East, did not pass the straits, but landed their cargoes at Aden; here the trankies of the Arabs, which brought the produce of Europe, Syria, and Egypt, received them, and conveyed them to Assab, Cosir, or Jidda: ultimately they reached Alexandria. Marco Polo gives a magnificent picture of the wealth, power, and influence of Aden in the thirteenth century.

When the Christians were expelled from Syria, in the beginning of the fourteenth century, and, in order to procure the merchandize of the east, were obliged to submit to the exactions of the sultan of Egypt; Sanuto, a Venetian, addressed a work to the Pope, in which he proposed to suppress the Egyptian trade by force. In this work are many curious particulars of the Indian trade at this time; and it is highly interesting both on this account, and from the clear-sighted speculations of the author. It appears to have produced a strong sensation; and though his mode of suppressing the Egyptian trade was not followed, yet, in consequence of it, much more attention was paid to Oriental commerce. According to him, the productions of the East came to the Venetians in two different ways. Cloves, nutmegs, pearls, gems, and other articles of great value, and small bulk, were conveyed up the Persian Gulf and the Tigris to Bassora, and thence to Bagdat; from which they were carried to some port in the Mediterranean. The more bulky and less valuable articles were conveyed by Arabian merchants to the Red Sea, and thence across the desert and down the Nile to Alexandria. He adds, that ginger and cinnamon, being apt to spoil on shipboard, were from ten to twenty per cent. better in quality, when brought by land carriage, though this conveyance was more expensive.

From the works of Sanuto, it appears that sugar and silk were the two articles from their trade in which the Saracens derived the greatest portion of their wealth. Cyprus, Rhodes, Amorea, and Marta (probably Malta), produced sugar; silk was the produce of Apulia, Romania, Crete, and Cyprus. Egypt was celebrated, as in old times, for the fineness of its flax; European flax was far inferior. The Egyptian manufactures of linen, silk, and linen and silk mixed, and also the dates and cassia of that country were exported to Turkey, Africa, the Black Sea, and the western ports of Europe, either in Saracen or Christian vessels. In return for these articles, the Egyptians received from Europe, gold, silver, brass, tin, lead, quicksilver, coral, and amber: of these, several were again exported from Egypt to Ethiopia and India, particularly brass and tin. Sanuto further observes, that Egypt was dependent on Europe for timber, iron, pitch, and other materials for ship building.

As his plan was to cut off all trade with the Saracens, and for that purpose to build a number of armed galleys, he gives many curious particulars respecting the expence of fitting them out; he estimates that a galley capable of holding 250 men, will cost 1500 florins, and that the whole expence of one, including pay, provisions, &c. for nine months, would be 7000 florins. The seamen he proposes to draw from the following places, as affording the most expert: Italy, the north of Germany, Friesland, Holland, Slavia, Hamburgh, Denmark, Sweden, and Norway.

In the year 1335, Pegoletti, an Italian, wrote a system of commercial geography; in this, the route taken by the merchants who brought produce and manufactures from China to Azof is particularly described. "In the first place," he says, "from Azof to Astracan it is twenty-five days journey with waggons drawn by oxen; but with waggons by horses, only ten or twelve. From Astracan to Sara, by the river, one day; from Sara to Saracanco, on the north-east coast of the Caspian Sea, eight days by water; thence to Lake Aral, twenty days' journey with camels. At Organci on this lake there was much traffic. To Oltrarra on the Sihon, thirty-five or forty days, also with camels; to Almaley with asses, thirty-five days; to Camexu, seventy days with asses; to a river, supposed to be the Hoangho, in China, fifty days with horses; from this river the traveller may go to Cassai, to dispose of his loading of silver there, and from this place he travels through the whole of Cathay with the Chinese money he receives for his silver; to Gambelecco, Cambalu, or Pekin, the capital of Cathay, is thirty days' journey." So that the whole time occupied about 300 days. Each merchant generally carried with him silver and goods to the value of 25,000 gold ducats; the expence of the whole journey was from 300 to 350 ducats. The other travellers of the fourteenth century, from whom we derive any information respecting Eastern geography and commerce, are Haitho, Oderic, and Sir John Mandeville; they add little, however, to the full and accurate details of Marco Polo, on which we can depend.

Haitho's work, comprehends the geography of the principal states of Asia; his information was derived from Mogul writings, the relation of Haitho I. king of Armenia, who had been at the head quarters of Mangu Khan, and from his own personal knowledge.

Oderic is the first missionary upon record in India; the date of his journey is 1334; among much that is marvellous, his relations contain some extraordinary truths. He went, in company with other monks, as far as China. There is little new or valuable till he reaches the coast of Malabar: of the pepper trade on this coast he gives a clear and rational account. He next describes Sumatra and the adjacent islands, and mentions the sago tree. Respecting China, he informs us, among other things which are fabulous, that persons of high rank keep their nails extremely long, and that the feet of the women are very small. He expresses great surprise and admiration at the wealth of the cities through which he passed on his return from Zartan to Pekin. Tartary and Thibet were visited by him, after leaving China; he mentions the high price of the rhubarb of the former country and the Dalai Lama of Thibet. In his voyages in India he sailed on board a vessel which carried 700 people,--a confirmation, as Dr. Vincent observes, of the account we have from the time of Agatharcides down to the sixteenth century,--which sailed from Guzerat and traversed the Indian Ocean.

Sir John Mandeville, an Englishman, in order to gratify his desire of seeing distant and foreign countries, served as a volunteer under the Sultan of Egypt and the Grand Khan of Cathai. He travelled through Turkey, Armenia, Egypt, Africa, Syria, Arabia, Persia, Chaldea, Ethiopia, Tartary, India, and China. There is, however, little information in his travels on our present subject. He represents the Venetians as not only trading regularly to Ormus, but sometimes even penetrating as for as Cambalu. Famagusta, in Cyprus, according to him, was one of the most commercial places in the world, the resort of merchants of all nations, Christians and Mahomedans.

Some curious and interesting particulars on the subject of Oriental commerce are scattered in the travels of Clavigo, who formed part of an embassy sent by Henry III. of Castile to Tamerlane, in 1403. Clavigo returned to Spain in 1406. He passed through Constantinople, which he represents as not one-third inhabited, up the Black Sea to Trebizond. Hence he traversed Armenia, the north of Persia, and Khorasan. Tauris, according to him, enjoyed a lucrative commerce: in its warehouses were an abundance of pearls, silk, cotton goods, and perfumed oils. Sultania also was a great mart for Indian commodities. Every year, between June and August, caravans arrived at this place. Cotton goods of all colours, and cotton yarn were brought from Khorasan; pearls and precious stones from Ormus; but the principal lading of the caravans consisted of spices of various kinds: at Sultania these were always found in great abundance, and of the best quality. From Tauris to Samarcand there were regular stations, at which horses were always ready to convey the orders of the khan or travellers. We are indebted to Clavigo for the first information of this new route of the commerce between India and Europe, by Sultania: it is supposed to have been adopted on the destruction of Bagdat by the Moguls; but we learn from other travellers that, towards the end of the fifteenth century, Sultania was remarkable for nothing besides the minarets of a mosque, which were made of metal, and displayed great taste and delicacy of workmanship.

Tamerlane lived in excessive magnificence and luxury at Samarcand; hither he had brought all his captives, who were expert in any kind of manufacture, especially in the silks of Damascus, and the sword cutlery of Turkey. To this city the Russians and Tartars brought leather, hides, furs, and cloth: silk goods, musk, pearls, precious stones, and rhubarb, were brought from China, or Cathay. Six months were occupied in bringing merchandize from Cambalu, the capital of Cathai, to Samarcand; two of these were spent in the deserts. Samarcand had also a trade with India, from which were received mace and other fine spices. Clavigo remarks, that such spices were never brought to Alexandria.