Both steam and sailing vessels are constantly engaged in carrying freight and passengers from the principal ports of the Atlantic States to Chagres, the principal port on the eastern coast of the Isthmus. Tickets which will carry passengers to Chagres, and, after crossing the Isthmus, from Panama to San Francisco, can be purchased in New York, from whence to Chagres, the passage generally occupies about eight days, and has been accomplished in seven. The harbor of Chagres is a small but good one, for vessels of less than two hundred tons burden. It is protected by hills on all sides and towards the ocean, by a beetling cliff, jutting out into the sea, on the summit of which is the ancient and somewhat dilapidated castle of San Lorenzo. At the base of this cliff is the channel which forms an entrance to the town. Ignorance of this fact caused the wreck of several of the vessels which went from the United States to Chagres soon after the receipt of the news of the gold discovery. The following is a description of Chagres and its inhabitants in the early part of 1849. It has since improved considerably, on account of the travel across the Isthmus. "The first thing which struck our wondering gaze on entering Chagres, was its bee-hive appearance. It is a strange, fantastic, and oddish-looking town, situated in a deep, dark hollow or cove. It consists of some forty or fifty huts, with pointed palm-thatched roofs, and reed walls. Nor were the innumerable buzzards which were flying about or resting on the houses, together with the energetic gesticulation of the natives when in conversation, as we drew near, at all calculated to lessen the picturesque effect of a first view. The surrounding country was any thing but devoid of interest and beauty. All had a strange, equatorial look; while the green hills around, clothed with rich tropical verdure, and the graceful and shadowy palm and cocoanut, with other strange fantastic trees, together with the ruins of the large old Spanish castle, on the heights above the town, gave to the scenery a very beautiful and picturesque aspect.