'Hiplay! lu—lu—lu—lu!'[3] some coal-black natives shouted joyously as they stood by the shore of Lake Nyasa, and saw across the blue waters what a European would have taken for water-spouts, or pillars of smoke.

But the natives knew better! Those great pillars darkening the air were dense masses of that African delicacy, the Nkungu fly.

The men hurriedly seized the saucer-shaped baskets which they had with them, and waved them round their heads till they were full of flies.

The next thing to do was to crush the flies in their hands, roll them in leaves, and lay them to roast in the ashes of a wood fire.

When finished the mass looked rather like coffee-grounds, and tasted like liquorice.

This is the only cake a Central African ever makes for himself. English people would hardly want to rob him of it, but to him it is delicious.