Mr. Canto mentioned that there is now much more cotton in the country than can be consumed; and if he had possession of a few hundred pounds, he would buy up all the oil and cotton at a fair price, and thereby bring about a revolution in the agriculture of the country. These commodities are not produced in greater quantity, because the people have no market for those which now spring up almost spontaneously around them. The above was put down in my journal when I had no idea that enlarged supplies of cotton from new sources were so much needed at home.
It is common to cut down cotton-trees as a nuisance, and cultivate beans, potatoes, and manioc sufficient only for their own consumption. I have the impression that cotton, which is deciduous in America, is perennial here; for the plants I saw in winter were not dead, though going by the name Algodao Americana, or American cotton. The rents paid for gardens belonging to the old convents are merely nominal, varying from one shilling to three pounds per annum. The higher rents being realized from those in the immediate vicinity of Loanda, none but Portuguese or half-castes can pay them.
When about to start, the horse which the governor had kindly presented for Sekeletu was seized with inflammation, which delayed us some time longer, and we ultimately lost it. We had been careful to watch it when coming through the district of Matamba, where we had discovered the tsetse, that no insect might light upon it. The change of diet here may have had some influence in producing the disease; for I was informed by Dr. Welweitsch, an able German naturalist, whom we found pursuing his arduous labors here, and whose life we hope may be spared to give his researches to the world, that, of fifty-eight kinds of grasses found at Loanda, only three or four species exist here, and these of the most diminutive kinds. The twenty-four different species of grass of Golungo Alto are nearly all gigantic. Indeed, gigantic grasses, climbers, shrubs and trees, with but few plants, constitute the vegetation of this region.


