Located in the same province, some 18 miles further east, and only 30 from Havana, is the harbor of Mariel, a single-purse-shaped bay, that from its narrow entrance opens out to a broad picturesque sheet of water extending southward some four or five miles, while several prolongations extend out towards the southwest, bordered with rich sugar cane plantations. The little fishing village of Mariel is located at the extreme head of the bay and connected with Havana by automobile drive, as are the two harbors previously mentioned. A high table land extends along much of the eastern shore of this harbor, on the summit of which stands the Cuban Naval Academy. Near the entrance, on the eastern shore, is located a new cement factory with a capacity of a thousand barrels a day. On the western side of the entrance is the quarantine station, to which all infested vessels are sent, and where delightful accommodations are found ashore for both passengers and crew, who may be detained by sanitary officials of the central government. The fine deep-water harbor of Havana, which boasts of a foreign trade excelled in the western hemisphere only by that of New York City, is, of course, the most important commercial gateway of the Republic of Cuba. It is one of those deep, narrow-necked, purse-shaped harbors, so characteristic of the Island, and furnishes splendid anchorage, with well equipped modern wharves, for handling the enormous bulk of freight that comes and goes throughout every day of the year. After passing the promontories of El Morro and Cabanas, that stretch along the eastern side of the entrance for a mile or more, the remainder of the shores of the Bay of Havana are comparatively low, although high ridges and hills form a fairly close background in almost every direction. Within the last ten years a great deal of dredging and land reclaiming has taken place in this harbor, increasing greatly not only the depth of water but also the available building sites. A series of magnificent modern wharves have been built along the western shore of the harbor, furnishing splendid shipping facilities for incoming and outgoing vessels. The upper portions of these buildings are occupied by the Custom House and Quarantine authorities. The southwest extension of this bay, recently dredged, furnishes access to deep draft steamships up to the site of the old Spanish Arsenal, that in 1908 was converted into the freight and passenger yards of the United Railroads. Along the docks, where steamers of the P. & O. SS line are moored, were built and launched many of Spain’s ships that centuries ago fought with Great Britain for the dominion of the seas. On the broad topped promontory that lies along the eastern shore, southeast of Cabanas, is located Trisconia, a splendidly equipped detention camp for immigrants and passengers coming from infested ports in different parts of the world. Excellent accommodations are there provided during the period of