In the broader valleys, where the streams are smaller, or have done less destruction to the country, grows the giant diàdia grass, the stems often attaining two and a half inches in circumference and a mean height of fifteen feet; there may be found some of the richest soil in the world. Where the diàdia has been exists the wildest luxuriance of vegetation; palms, plantain, Indian corn,31 ground-nuts, yams and all garden produce are at their best, and ever at the mercy of the elephants, who rejoice in such choice selection. In the Majinga country the native houses have to be scattered through their rich farms, and morning and night the people shout, scream, and beat their drums to frighten off these giant marauders. It is not a forest country. Strange clumps of trees grow on the tops of the hills, which mark the ancient plateau level, but the rich soil beside the streams and in the snug valleys is generally well wooded. The vegetation presents an altogether tropical appearance, the bra