On the northern side of the Carmel chain, at some distance from the sea, there lies a broad expanse of extremely rich and fertile country, which, though not strictly level, is called a plain. It was known in ancient times as the plain of Jezreel. It is now called the plain of Esdraelon. The waters of this plain, flowing westward and northward along the foot of Mt. Carmel to the sea, constitute the river Kishon, so celebrated in sacred history. The sea itself sets up a little way into the valley through which this river flows, forming thus a broad bay to the north of Mt. Carmel, called the Bay of Acre. The town of Acre lies at the northern extremity of this bay, and the town of Haïfa[1] at the southern border of it, just at the foot of Carmel. The ceaseless action of the sea has sloped and smoothed the shore of this bay throughout the whole distance from Haïfa to Acre, and formed upon it a beach of sand, which serves the double purpose of a landing-place for the boats of the fishermen, and a road for the caravans of travelers that pass to and fro along the coast. The conformation of the bay, together with the precise situation of Acre and Haïfa, as well as the more important topographical details of the mountain, will be found very clearly represented in the chart upon the adjoining page. NAPOLEON'S ENGINEERS. The topographical chart of the bay of Acre here given is one made by the engineers of the French army during Napoleon's celebrated expedition to Egypt and Syria. These engineers accompanied the army wherever it marched, and in the midst of all the scenes of excitement, difficulty, and danger, through which they were continually passing, devoted themselves to the performance of the scientific duties which their commander had assigned them, with a calmness and composure almost incredible. No possible excitement or commotion around them seemed to have power to interrupt or disturb them in their work. The din and confusion of the camp, the marches and countermarches of the troops, the battles, the sieges, the assaults, the excitement of victory, and the confusion of sudden and unexpected retreats--all failed to embarrass or disconcert them. Whatever were the scenes that might be transpiring around them, they went quietly and fearlessly on, paying no regard to any thing but their own proper duties. They adjusted their instruments; they made their observations, their measurements, their drawings; they computed their tables and constructed their charts; and in the end they brought back to France a complete daguerreotype, as it were, of every hill, and valley, and river, and plain, of the vast surface which they traversed. The great chart from which the adjoining map is taken was the last one which they made, for Acre was the northern termination of Napoleon's expedition.[2] [Illustration: MOUNT CARMEL AND THE BAY OF ACRE.] APPROACHES TO MOUNT CARMEL.