------------------------------------------------------------------------ CHAPTER VIII. DESCRIPTION OF THE LAKE OR LAGOON DOS PATOS—THE ENEMY COMMAND THE LAKE—PLAN TO ENTER IT—TRANSPORTATION OF LAUNCHES OVER LAND—RESULTS OF THE EXPERIMENT —BREAKERS—SHIPWRECK—SAD CATASTROPHE. The Lake or Lagoon Dos Patos is about 45 leagues in length, or 135 miles, and from eleven to twenty miles in medium width. Near its mouth, on the right shore, stands a strong place, called Southern Rio Grande, while Northern Rio Grande is on the opposite side. Both are fortified towns, and were then in possession of the Imperialists, as well as Porto Alegre. The enemy were therefore masters of the lake by water. It was thought impossible for the Republicans to pass through the outlet which leads from the lake to the sea, and as that was the only water passage, we were obliged to prepare to effect a way of communication by land. This could be done only by transporting the launches on carts over the intermediate country. In the northern part of the lake is a deep bay, called Cassibani, which takes its name from a small river that empties in at its further side. That bay was chosen as the place for landing the launches; and the operation was performed on the right bank. An inhabitant of that part of the province, named De Abrea, had prepared wheels of great solidity, connected two and two by axles, proportioned to the weight of the vessels. About two hundred domestic oxen were then collected, with the assistance of the neighboring inhabitants, and, by their labor, the launches were drawn to the shore and got into the water, being carried on wheels, placed at proportionate distances from each other. Care, however, was taken to keep them in such positions that the centre of gravity should be preserved, by supporting the vessels laterally, without disturbing the free action of the wheels. Very strong ropes were, of course, provided, to attach the oxen to the wheels. Thus the vessels of the Republican squadron started off, navigating across the fields. The oxen worked well, they being well placed and prepared for drawing freely in the most convenient manner. They travelled a distance of fifty-four miles without any difficulty, presenting a curious and unprecedented spectacle in those regions. On the shore of Lake Tramandai the launches were taken from the carts and put into the water, and then loaded with necessaries and rigged for sailing. Lake Tramandai, which is formed by the streams falling from the chain of Espenasso, empties into the Atlantic, but is very shallow, having only about four feet of water at high tide; besides, on that coast, which is very open and all alluvial, the sea is never tranquil, even in the most favorable weather: but the numerous breakers incessantly stun the ear, and from a distance of many miles their roar sounds like peals of thunder.