A Political Event Which Appeared Extremely Unfortunate, The Taking Of The Havannah By The English, Roused The Public Mind.

The town was evacuated in 1784 and its subsequent efforts of industry date from that memorable period.

The construction of new fortifications on a gigantic plan* threw a great deal of money suddenly into circulation (* It is affirmed that the construction of the fort of Cabana alone cost fourteen millions of piastres.); later the slave-trade became free and furnished hands for the sugar factories. Free trade with all the ports of Spain and occasionally with neutral states, the able administration of Don Luis de Las Casas, the establishment of the Consulado and the Patriotic Society, the destruction of the French colony of Saint Domingo,* (* In three successive attempts, in August 1791, June 1793, and October 1803. Above all the unfortunate and sanguinary expedition of Generals Leclerc and Rochambeau completed the destruction of the sugar factories of Saint Domingo.) and the rise in the price of sugar which was the natural consequence, the improvement in machines and ovens, due in great part to the refugees of Cape Francois, the more intimate connection formed between the proprietors of the sugar factories and the merchants of the Havannah, the great capital employed by the latter in agricultural establishments (sugar and coffee plantations), such have been successively the causes of the increasing prosperity of the island of Cuba, notwithstanding the conflict of the authorities, which serves to embarrass the progress of affairs.

The greatest changes in the plantations of sugar-cane and in the sugar factories, took place from 1796 to 1800. First, mules were substituted (trapiches de mulas) for oxen (trapiches de bueyes); and afterwards hydraulic wheels were introduced (trapiches de agua), which the first conquistadores had employed at Saint Domingo; finally the action of steam-engines was tried at Ceibabo, at the expense of Count Jaruco y Mopex. There are now twenty-five of those machines in the different sugar mills of the island of Cuba. The culture of the sugar-cane of Otaheite in the meantime increased. Boilers of preparation (clarificadoras) were introduced and the reverberating furnaces better arranged. It must be said, to the honour of wealthy proprietors, that in a great number of plantations, a kind solicitude is manifested for sick slaves, for the introduction of negresses, and for the education of children.

The number of sugar factories (yngenios) in 1775 was 473 in the whole island; and in 1817 more than 780. Among the former, none produced the fourth part of the sugar now made in the yngenios of second rank; it is consequently not the number of factories that can afford an accurate idea of the progress of that branch of agricultural industry.

The first sugar-canes carefully planted on virgin soil yield a harvest during twenty to twenty-five years, after which they must be replanted every three years. There existed in 1804, at the Hacienda de Matamoros, a square (canaveral) worked during forty-five years. The most fertile soil for the production of sugar is now in the vicinity of Mariel and Guanajay. That variety of sugar-cane known by the name of Cana de Otahiti, recognised at a distance by a fresher green, has the advantage of furnishing, on the same extent of soil, one-fourth more juice, and a stem more woody, thicker, and consequently richer in combustible matter. The refiners (maestros de azucar), pretend that the vezou (guarapo) of the Cana de Otahiti is more easily worked, and yields more crystallized sugar by adding less lime or potass to the vezou. The South Sea sugar-cane furnishes, no doubt, after five or six years' cultivation, the thinnest stubble, but the knots remain more distant from each other than in the Cana creolia or de la tierra. The apprehension at first entertained of the former degenerating by degrees into ordinary sugar-cane is happily not realized. The sugar-cane is planted in the island of Cuba in the rainy season, from July to October; and the harvest is gathered from February to May.

In proportion as by too rapid clearing the island has become unwooded, the sugar-houses have begun to want fuel. A little stalk (sugar-cane destitute of its juice) used to be employed to quicken the fire beneath the old cauldrons (tachos); but it is only since the introduction of reverberating furnaces by the emigrants of Saint Domingo that the attempt has been made to dispense altogether with wood and burn only refuse sugar-cane. In the old construction of furnaces and cauldrons, a tarea of wood, of one hundred and sixty cubic feet, is burnt to produce five arrobas of sugar, or, for a hundred kilogrammes of raw sugar, 278 cubic feet of the wood of the lemon and orange trees are required. In the reverberating furnaces of Saint Domingo a cart of refuse-cane of 495 cubic feet produced 640 pounds of coarse sugar, which make 158 cubic feet of refuse-cane for 100 kilogrammes of sugar. I attempted, during my stay at Guines, and especially at Rio Blanco, with the Count de Mopex, several new constructions, with the view of diminishing the expense of fuel, surrounding the focus with substances which do not powerfully conduct the heat, and thus diminish the sufferings of the slaves who keep up the fire. A long residence in the salt-producing districts of Europe, and the labours of practical halurgy, to which I have been devoted since my early youth, suggested to me the idea of those constructions, which have been imitated with some success. Cuvercles of wood, placed on clarificadoras, accelerated the evaporation, and led me to believe that a system of cuvercles and moveable frames, furnished with counter-weights, might extend to other cauldrons. This object merits further examination; but the quantity of vezou (guarapo) of the crystallized sugar extracted, and that which is destroyed, the fuel, the time and the pecuniary expense, must be carefully estimated.

An error, very general through Europe and one which influences opinion respecting the effects of the abolition of the slave-trade, is that in those West India islands called sugar colonies, the majority of the slaves are supposed to be employed in the production of sugar.

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