The price of sugar at the Havannah is always by the arroba of 25 Spanish pounds (or 11.49 kilogrammes), and the price of coffee by the quintal (or 45.97 kilogrammes). The latter has been known to vary from 4 to 30 piastres; it even fell, in 1808, below 24 reals. The price of 1815 and 1819 was between 13 and 17 piastres the quintal; coffee is now at 12 piastres. It is probable that the cultivation of coffee scarcely employs in the whole island of Cuba 28,000 slaves, who produce, on the yearly average, 305,000 Spanish quintals (14 millions of kilogrammes), or, according to the present value, 3,660,000 piastres; while 66,000 negroes produce 440,000 cases (81 millions of kilogrammes) of sugar, which, at the price of 24 piastres, is worth 10,560,000 piastres. It results from this calculation that a slave now produces the value of 130 piastres of coffee, and 160 piastres of sugar. It is almost useless to observe that these relations vary with the price of the two articles, of which the variations are often opposite and that, in calculations which may throw some light on agriculture in the tropical region, I comprehend in the same point of view interior consumption, exportation lawful and contraband. TOBACCO. The tobacco of the island of Cuba is celebrated throughout Europe. The custom of smoking, borrowed from the natives of Hayti, was introduced into Europe about the end of the sixteenth and beginning of the seventeenth century. It was generally hoped that the cultivation of tobacco, freed from an oppressive monopoly, would be to the Havannah a very profitable object of commerce. The good intentions displayed by the government in abolishing, within six years, the Factoria de tabacos, have not been attended by the improvement which was expected in that branch of industry. The cultivators want capital, the farms have become extremely dear, and the predilection for the cultivation of coffee is prejudicial to that of tobacco. The oldest information we possess respecting the quantity of tobacco which the island of Cuba has thrown into the magazines of the mother country go back to 1748. According to the Abbe Raynal, a much more exact writer than is generally believed, that quantity, from 1748 to 1753 (average year) was 75,000 arrobas. From 1789 to 1794 the produce of the island amounted annually to 250,000 arrobas; but from that period to 1803 the increased price of land, the attention given exclusively to the coffee plantations and the sugar factories, little vexations in the exercise of the royal monopoly (estanco), and impediments in the way of export trade, have progressively diminished the produce by more than one-half. The total produce of tobacco in the island is, however, believed to have been, from 1822 to 1825, again from 300,000 to 400,000 arrobas.