journal of Rodriguez; it is the Cerro Acuquamo of Caulin, or rather of his commentator. Hist. corogr. page 176.) They advised Hortsmann to seek round the Rio Mahu for a mine of silver (no doubt mica with large plates), of diamonds, and emeralds. He found nothing but rocky crystals. His account seems to prove that the whole length of the mountains of the Upper Orinoco (Sierra Parima) toward the east, is composed of granitic rocks, full of druses and open veins, the Peak of Duida. Near these lands, which still enjoy a great celebrity for their riches, on the western limits of Dutch Guiana, live the Macusis, Aturajos, and Acuvajos. The traveller Santos found them stationed between the Rupunuwini, the Mahu, and the chain of Pacaraimo. It is the appearance of the micaceous rocks of the Ucucuamo, the name of the Rio Parima, the inundations of the rivers Urariapara, Parima, and Xurumu, and more especially the existence of the lake Amucu (near the Rio Rupunuwini, and regarded as the principal source of the Rio Parima), which have given rise to the fable of the White Sea and the Dorado of Parima. All these circumstances (which have served on this very account to corroborate the general opinion) are found united on a space of ground which is eight or nine leagues broad from north to south, and forty long from east to west. This direction, too, was always assigned to the White Sea, by lengthening it in the direction of the latitude, till the beginning of the sixteenth century. Now this White Sea is nothing but the Rio Parima, which is called the White River (Rio Branco, or Rio del Aguas blancas), and runs through and inundates the whole of this land. The name of Rupunuwini is given to the White Sea on the most ancient maps, which identifies the place of the fable, since of all the tributary streams of the Rio Essequibo the Rupunuwini is the nearest to the lake Amucu. Raleigh, in his first voyage (1595), had formed no precise idea of the situation of El Dorado and the lake Parima, which he believed to be salt, and which he calls another Caspian Sea. It was not till the second voyage (1596), performed equally at the expense of Raleigh, that Laurence Keymis fixed so well the localities of El Dorado, that he appears to me to have no doubt of the identity of the Parima de Manao with the lake Amucu, and with the isthmus between the Rupunuwini (a tributary stream of the Essequibo) and the Rio Parima or Rio Branco. "The Indians," says Keymis, "go up the Dessekebe [Essequibo] in twenty days, towards the south. To mark the greatness of this river, they call it the brother of the Orinoco. After twenty days' navigating they convey their canoes by a portage of one day, from the river Dessekebe to a lake, which the Jaos call Roponowini, and the Caribbees Parime. This lake is as large as a sea; it is covered with an infinite number of canoes; and I suppose" [the Indians then had told him nothing of this] "that this lake is no other than that which contains the town of