As they advance and increase in numbers, the pasturage becomes more scarce; it is still more so the further they go, until they are at last obliged, in order to obtain the means of subsistence, to cross the Orange River, and become the pest of the sheep-farmer in a country which contains scarcely any of their favorite grassy food.

If they light on a field of wheat in their way, an army of locusts could not make a cleaner sweep of the whole than they will do.

It is questionable whether they ever return, as they have never been seen as a returning body.

Many perish from want of food, the country to which they have migrated being unable to support them; the rest become scattered over the colony; and in such a wide country there is no lack of room for all.

It is probable that, notwithstanding the continued destruction by fire-arms, they will continue long to hold their place.
On crossing the Orange River we come into independent territory inhabited by Griquas and Bechuanas.