“Pharu, bwana!” now whispers one of my men, and points cautiously with his arm down to a certain point on the plain. His caution, however, is not necessary, for it is at a distance of at least a thousand yards that his sharp eyes have distinguished the outlines of two almost invisible rhinoceroses that are moving slowly through a group of acacias. What an effect that word “pharu” has upon me! For once more there has come close to me one of those strange, mighty beings that really belong to a time long passed, and which, like the elephant, the giraffe, the zebra, the gnu, and a few other forms, lend to the wilderness the charm of primeval days. Naturally still stronger is the effect of the cry of “Tembo!” on the hunter and the watcher amid such scenes. “Elephant!” This name electrifies even the weariest traveller. But when the word is “Twigga!” (“Giraffe!”)--even here in Europe the strange, slender-necked creature, moving in some acacia wood all flooded with the sunlight, comes up bodily before me--bodily and plainly to be seen, but alas, only in imagination! After trying for a minute, I succeed in getting the massive creatures sharply defined in the middle of the field of my glass. But the clear view of them is something that comes and goes. Several times it looks as if the velt had swallowed them up; then they suddenly come into sight again, being specially visible to the eye when they show themselves sideways. Seen from front or rear, particularly when at rest, they are all but invisible. We are in luck; the rhinoceroses are ambling towards us, and come nearer and nearer, slowly following the line of some hollows in the ground.