Bruce brings out as strongly as the Jesuits the fact that the river Jimma, which rises on Sagada Mountain, flows with a strong observable current in a circular course through the southern part of Lake Tsana. Lake Tsana, indeed, would seem to be nothing but a huge volcanic crater which has been filled up by the Blue Nile. He calculates the approximate altitude of these sources at forty-eight hundred and seventy feet. Near the village of Sakala or Sagada is a marsh at the bottom of the Mountain of Gish. In this marsh there is a hillock of a circular form a few feet above the surface of the marsh, a more or less artificial altar raised by the people to the sources of their Nile. In the middle of this hillock is a hole, artificially made, or at least enlarged by the hand of man, and kept clear of grass or other aquatic plants. The water in it is perfectly pure and limpid, but has no ebullition or motion of any kind observable on its surface, though it overflows into a shallow trench running round the mound and entering the water in an eastward direction. The principal fountain of the Blue Nile is only about three feet across. Ten feet distant from this first source is another, only eleven inches broad. This would seem to be the deepest of the three sources, and the one which was pronounced unsoundable by Lobo. The water from these fountains is good, tasteless, and intensely cold. Following by land the course of the Blue Nile down stream till he reached the confluence with the White Nile at the site of Khartum, Bruce then turned northwards and descended the main Nile to Berber. From this point he travelled across the Nubian desert to Korosko, which place he reached with the greatest difficulty, very many dying from thirst on the way. Having been obliged to abandon his caravan in the desert, he started back from Korosko with fresh camels and guides, and recovered his baggage from the desert. Bruce’s journeys in Abyssinia and along the course of the Nile had occupied him nearly three years, from the middle of 1770 to the beginning of 1773. From Alexandria he made his way to Marseilles during a brief interval of peace between England and France. The cultivated Frenchmen of that day received him with the greatest kindness and _empressement_, and he spent some time in Paris conferring with Buffon and other scientific men. But in Paris he learned to his great chagrin that he was not the original discoverer of the source of the (Blue) Nile. D’Anville, the great map-maker, was able to prove to him that Lake Tsana and the main course of the Bahr-al-Azrak had been made known to Europe by the journeys of the Jesuit priests Paez and Lobo. Moreover this geographer attempted to convince Bruce that the Blue Nile was not the main stream, and that the mystery of the Nile sources remained at least two-thirds unexplored. It is curious, in fact, to reflect that D’Anville, by his industrious gathering up of all floating information, especially from French