This engineer is one of a numerous class, whom the sugar culture brings annually to Cuba. They leave home in the autumn, engage themselves for the sugar season, put the machinery in order, work it for the four or five months of its operation, clean and put it in order for lying by, and return to the United States in the spring. They must be machinists, as well as engineers; for all the repairs and contrivances, so necessary in a remote place, fall upon them. Their skill is of great value, and while on the plantation their work is incessant, and they have no society or recreations whatever. The occupation, however, is healthful, their position independent, and their pay large. This engineer had been several years in Cuba, and I found him well informed, and, I think, impartial and independent. He tells me, which I had also heard in Havana, that this plantation is a favorable specimen, both for skill and humanity, and is managed on principles of science and justice, and yields a large return. On many plantations--on most, I suspect, from all I can learn--the Negroes, during the sugar season, are allowed but four hours sleep in the twenty-four, with one for dinner, and a half hour for breakfast, the night being divided into three watches, of four hours each, the laborers taking their turns. On this plantation, the laborers are in two watches, and divide the night equally between them, which gives them six hours for sleep. In the day, they have half an hour for breakfast and one hour for dinner. Here, too, the very young and the very old are excused from the sugar-house, and the nursing mothers have lighter duties and frequent intervals of rest. The women worked at cutting the cane, feeding the mill, carrying the bagazo in baskets, spreading and drying it, and filling the wagons; but not in the sugar-house itself, or at the furnace doors. I saw that no boys or girls were in the mill--none but full-grown persons. The very small children do absolutely nothing all day, and the older children tend the cattle and run errands. And the engineer tells me that in the long run this liberal system of treatment, as to hours and duties, yields a better return than a more stringent rule.