It was the close of the day. Over the baked veldt of Equatorial Africa a safari marched. The men, in single file, were reduced to the unimportance of moving black dots by the tremendous sweep of the dry country stretching away to a horizon infinitely remote, beyond which lay single mountains, like ships becalmed hull-down at sea. The immensities filled the world-the simple immensities of sky and land. Only by an effort, a wrench of the mind, would a bystander on the advantage, say, of one of the little rocky, outcropping hills have been able to narrow his vision to details. And yet details were interesting. The vast shallow cup to the horizon became a plain sparsely grown with flat-topped thorn trees. It was not a forest, yet neither was it open country. The eye penetrated the thin screen of tree trunks to the distance of half a mile or more, but was brought to a stop at last. Underfoot was hard-baked earth, covered by irregular patches of shale that tinkled when stepped on.