6. Migrating races do not traverse continents with the same rapidity as marching armies. The progress is slow, the stations are many. Every station becomes a settlement, sometimes the beginning of a new nation--so many landmarks along the way. And the distance between the starting-point and the furthest point reached by the race is measured not only by thousands of miles, but also by hundreds and hundreds of years; only the space can be actually measured; while the time can be computed merely by conjecture. The route from the south of India, along the shore of Malabar, the Persian Gulf, across the Arabian deserts, then down along the Red Sea and across the straits into Africa, is of such tremendous length that the settlements which the Cushite race left scattered along it must have been more than usually numerous. According to the upholders of a Cushite colonization of Chaldea, one important detachment appears to have taken possession of the small islands along the eastern shore of the Persian Gulf and to have stayed there for several centuries, probably choosing these island homes on account of their seclusion and safety from invasion. There, unmolested and undisturbed, they could develop a certain spirit of abstract speculation to which their natural bent inclined them. They were great star-gazers and calculators--two tastes which go well together, for Astronomy cannot exist without Mathematics. But star-gazing is also favorable to dreaming, and the Cushite islanders had time for dreams. Thoughts of heavenly things occupied them much; they worked out a religion beautiful in many ways and full of deep sense; their priests dwelt in communities or colleges, probably one on every island, and spent their time not only in scientific study and religious contemplation, but also in the more practical art of government, for there do not appear as yet to have been any kings among them.