Within the city, negro carriers may be heard at all hours, in couples, engaged in the transportation of clove-bags, boxes of merchandise, &c., from store to "godown" and from "go-down" to the beach, singing a kind of monotone chant for the encouragement of each other, and for the guiding of their pace as they shuffle through the streets with bare feet. You may recognise these men readily, before long, as old acquaintances, by the consistency with which they sing the tunes they have adopted. Several times during a day have I heard the same couple pass beneath the windows of the Consulate, delivering themselves of the same invariable tune and words. Some might possibly deem the songs foolish and silly, but they had a certain attraction for me, and I considered that they were as useful as anything else for the purposes they were intended. The town of Zanzibar, situate on the south-western shore of the island, contains a population of nearly one hundred thousand inhabitants; that of the island altogether I would estimate at not more than two hundred thousand inhabitants, including all races. The greatest number of foreign vessels trading with this port are American, principally from New York and Salem. After the American come the German, then come the French and English. They arrive loaded with American sheeting, brandy, gunpowder, muskets, beads, English cottons, brass-wire, china-ware, and other notions, and depart with ivory, gum-copal, cloves, hides, cowries, sesamum, pepper, and cocoa-nut oil. The value of the exports from this port is estimated at $3,000,000, and the imports from all countries at $3,500,000. The Europeans and Americans residing in the town of Zanzibar are either Government officials, independent merchants, or agents for a few great mercantile houses in Europe and America. The climate of Zanzibar is not the most agreeable in the world. I have heard Americans and Europeans condemn it most heartily. I have also seen nearly one-half of the white colony laid up in one day from sickness. A noxious malaria is exhaled from the shallow inlet of Malagash, and the undrained filth, the garbage, offal, dead mollusks, dead pariah dogs, dead cats, all species of carrion, remains of men and beasts unburied, assist to make Zanzibar a most unhealthy city; and considering that it it ought to be most healthy, nature having pointed out to man the means, and having assisted him so far, it is most wonderful that the ruling prince does not obey the dictates of reason.