The number of Sisters altogether in this house engaged in attendance on the ninety infirm paupers, is fourteen. They divide the duties of the house among themselves. Two serve in the kitchen, two in the laundry; one begs, one devotes herself to constant personal attendance on the wants of the old men, and so on with the others, each having her special department. The whole sentiment of the household is that of a very large and very amiable family. To feel that they console the last days of the infirm and aged poor, is all the Little Sisters get for their hard work. HOW GUNPOWDER IS MADE.--VISIT TO HOUNSLOW MILLS. Hounslow Gunpowder Mills are not so much like a special "town," as so many other large manufactories appear, but rather have the appearance of an infant colony--a very infant one, inasmuch as it has very few inhabitants. We never met a single man in all our rambles through the plantations, nor heard the sound of a human voice. It is like a strange new settlement, where there is ample space, plenty of wood and water, but with scarcely any colonists, and only here and there a log-hut or a dark shed among the trees. These works are distributed over some hundred and fifty acres of land, without reckoning the surface of the Colne, which, sometimes broad, sometimes narrow, sometimes in a line, and sometimes coiling, and escaping by a curve out of sight, intersects the whole place. It is, in fact, a great straggling plantation of firs, over swells and declivities of land, with a branch or neck of a river meeting you unexpectedly at almost every turn. The more we have seen of this dismal settlement "in the bush," the more do we revert to our first impression on entering it. The place is like the strange and squalid plantation of some necromancer in Spenser's "Fairy Queen." Many trees are black and shattered, as if by lightning; others distorted, writhing, and partially stripped of their bark; and all of them have a sort of conscious look that this is a very precarious spot for the regular progress of vegetation. You wander up narrow winding paths, and you descend narrow winding paths; you see the broad arm of a river, with little swampy osier islands upon it, and then you enter another plantation, and come upon a narrow winding neck of river, leading up to a great black slanting structure, which you are told is a "blast-wall;" and behind this is the green embankment of a fortification, and further back you come upon one of the black, ominous-looking powder "houses." You advance along other tortuous paths, you cross small bridges, and again you enter a plantation, more or less sombre, and presently emerge upon an open space, where you see a semicircular road of red gravel, with cart-ruts deeply trenched in it; and then another narrower road down to a branch of the river, where there is another little bridge; and beyond this, on the other side, you see a huge water-wheel revolving between two black barn-like houses.