360. Stone, unwrought, for paving purposes. 361. Ploughs, hoes, hatchets, machetes, cane knives, etc., for agricultural purposes, and other agricultural implements not machinery. 362. Quinine, sulphate and bisulphate of, and all alkaloids or salts of cinchona bark. 363. Hemp, flax, and ramie, raw, hackled, or tow. 364. Abaca, heniquen, pita, jute, and other vegetable fibres, raw, hackled, or tow. 365. Single yarns made of jute for the manufacture of sugar bags only, to be imported by sugar-bag manufacturers only, the importer to give a bond to use the yarn exclusively for the manufacture of sugar bags. 366. Books, maps, and scientific instruments, for the use of schools. 367. Coal and coke. 368. Mineral, carbonated or seltzer waters, natural or artificial, root beer, ginger ale, and other similar non-alcoholic beverages, not otherwise provided for. 369. Fresh fish. 370. Second-hand clothing donated for charitable purposes to needy persons, and not for sale. 371. Articles of the growth, produce, and manufacture of the island of Cuba exported to a foreign country and returned without having been advanced in value or improved in condition by any process of manufacture or other means, and upon which no drawback or bounty has been allowed. IMPORT RATES OF DUTY ABBREVIATIONS EMPLOYED IN THE TARIFF G. W. = Gross weight. N. W. = Net weight. G. W.; T. = Gross weight or tare, as the case may be. T. = Tare. S. T. = Special tare. Kil. = Kilograms. Kilog. = Kilogram. Hectog. = Hectogram. Hectol. = Hectoliter. Duties shall be paid in United States money, or in foreign gold coin, such as the Spanish alfonsinos (centen) and the French louis, which will be accepted at the following rates: Alfonsinos (25-peseta piece), $4.82; louis (20-franc piece), $3.86. The following Spanish silver coins now in circulation in the Island of Cuba shall be received for customs at the following fixed rates in American money: Peso, 60 cents; medio peso, 30 cents; peseta, 12 cents; real, 6 cents; medio real, 3 cents. Bronze and copper coins now current in the Island of Cuba will be received at their face value for fractional parts of a dollar in a single payment to an amount not exceeding 12 cents (1 peseta). The metrical system of weights and measures is in use in Cuba. Importations from the United States are dutiable like other commodities. CLASS I.--STONES, EARTHS, ORES, GLASS, AND CERAMIC PRODUCTS GROUP I.--_Stones and earths employed in building, arts, and manufactures_ 1. Marble, jasper, and alabaster: _a._ In the rough or in dressed pieces, squared or prepared for shaping, G. W......100 kil. $0.50 _b._ Slabs, plates, or steps of any dimension, polished or not, G.W......100 kil. 1.00