The Southern Guaso Nyero, unlike its northern namesake, is a sluggish, muddy stream, rather small, flowing between abrupt clay banks. Farther down it drops into great ca?ons and eroded abysses, and acquires a certain grandeur. But here, at the ford of Agate's Drift, it is decidedly unimpressive. Scant greenery ornaments its banks. In fact, at most