The next largest group of chrome ore deposits is near Camaguey. They are very easy of access, but are of a lower grade than those of Oriente. They appear to contain a maximum of about 40,000 tons of ore that can be gathered by hand from the surface. Near Holguin, Cardenas and Matanzas, are small stocks of ore ready for shipment, perhaps 1,000 tons. The most productive chrome mine operating in the fall of 1918 seemed to be that of the “Britannia Company,” located about twelve miles southwest of Cardenas and about 80 miles from Havana. Two carloads a day were being shipped by rail from Coliseo to Havana, and thence by ferry to Key West and northern smelters. The manganese ores of Cuba occur principally in sedimentary rocks such as limestone, sandstone and shale, that in places have become metamorphosed, but in the most heavily mineralized zones are associated with masses of silicious rocks, locally temed “jasper” and “byate.” In one locality the manganese and its silicious associates were found in igneous rocks, such as Latite-porphyry and Latite. The sedimentary rocks with which manganese deposits are usually associated are in some places nearly horizontal, but generally show dips ranging from a few degrees to forty-five or more. The inclined beds usually represent portions of local folds. Some faulting is shown in the vicinity of various manganese deposits and may have influenced the localization of the deposits. Manganese ore is found in Oriente, Santa Clara and Pinar del Rio provinces, but only in Oriente has it been found in large commercial quantities. In Oriente the deposits are in three areas, one north and northeast of Santiago de Cuba, another south of Bayamo and Baire, and the third on the Caribbean coast between Torquino Peak and Portillo. The first two include the most extensive deposits on the Island. In Santa Clara ore has been found near the Caribbean coast west of Trinidad, and in Pinar del Rio Province manganese ore occurs north of the city of Pinar del Rio and farther west near Mendoza. The deposits of the northeast coast and those south of Bayamo, distant from each other approximately 100 miles, show nevertheless an interesting concordance in altitude. They stand from 500 to 1200 feet above sea level and nearly all of them are at altitude near 600 and 700 feet, suggesting a relation between the deposition of the manganese and a certain stage in the physiographic development of the region. Most of the manganese ore deposits are above drainage level, on the slopes of hills of moderate height, the maximum relief in the immediate vicinity of the deposits seldom exceeding 500 feet.