Swamps, huge anthills, scrub bush, outcroppings of rock; and stretches of tall, rank elephant grass combine to make natural landing places ex¬ ceedingly rare on the second stage of the airplane journey, which is most difficult and dangerous.

The flight from Cairo to the Cape takes the aviator over clusters of na¬ tive huts, dwarfed to the size of anthills, through which run the signs of civilization—ribbons of well-constructed road.