The line begins at the roadstead of Suez, turns to the east of the town, making a curve to reach the ancient track, which it leaves to the west, and follows the channel of the valley until it joins the Bitter Lakes, which anciently formed the extremity of the gulf of the Red Sea. It traverses those lakes throughout their length, following their sinuosities, so as to avoid the inequalities of the ground. On leaving the lakes, the line crosses the bar of the Serapeum, at its lowest point, and enters Lake Timsah, leaving the heights of Cheik Ennedek to the east. The last-mentioned lake is to serve in the formation of an inland port, in which ships may be revictualled and repaired, while it will be the point of junction between the Maritime Canal and the Canal communicating with the Nile. In traversing this lake, the line forms several curves, in order to avoid the extensive downs which have encroached upon a part of that region. On leaving the lake, the line proceeds to the bar of El Guisr, at its lowest point, and then goes towards Lake Menzaleh, which it follows directly along its eastern shore as far as Pelusium, and is prolonged into the sea until it reaches a depth of 7 _m._, 50. The dimensions of the Canal have been determined by the idea of creating a grand passage for maritime navigation, open to steam and sailing vessels of considerable burthen. The Caledonian Canal is the only known analogous work. This Canal, however, is but 37 _m._ broad at the water line, and but 6 _m._, 10 deep. The locks, to the number of 23, have been enlarged so as to admit forty-four gun frigates; they are 52 _m._, 40 in length between the gates, 13 _met._ in breadth, and have a depth of water of 6 _m._, 10. For cutting through the Isthmus of Panama by a maritime canal, as projected by Mr. Garella, it was proposed that the width of the canal, at the water line, should be 44 _met._, and the depth of water 7 _met._ Prince Louis Napoleon, who, in 1846, published a remarkable work, inserted in the _Revue Britannique_, under the title of _Canal de Nicaragua_, adopted the same dimensions as Mr. Garella, in the project which he proposed to execute for establishing the communication between the Atlantic and Pacific Oceans.