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 worrying you, and an automatic habit will be induced that will cause you never to let more than one eye roam spellbound over the beauties of the African landscape; the other will keep fixed, turned to the soil at your feet."

The Driver is of the species Ponera, and is generally referred to the species anomma arcens. The females and workers of these ants are provided with stings as well as well-developed jaws. They work both for all they are worth, driving the latter into your flesh, enthusiastically up to the hilt; they then remain therein, keeping up irritation when you have hastily torn their owner off in response to a sensation that is like that of red hot pinchers. The full-grown worker is about half an inch long, and without ocelli even. Yet one of the most remarkable among his many crimes is that he will always first attack the eyes of any victim. These creatures seem to have no settled home; no man has seen the beginning or end, as far as I know, of one of their long trains. As you are watching the ground you see a ribbon of glistening black, one portion of it lost in one clump of vegetation, the other in another, and on looking closer you see that it is an acies instituta of Driver ants. If you stir the column up with a stick they make a peculiar fizzing noise, and open out in all directions in search of the enemy, which you take care they don't find.

These ants are sometimes also called "visiting ants," from their habit of calling in quantities at inconvenient hours on humanity. They are fond of marching at night, and drop in on your house usually after you have gone to bed. I fancy, however, they are about in the daytime as well, even in the brightest weather; but it is certain that it is in dull, wet weather, and after dusk, that you come