[Illustration: Forest scene]
"That was a great day for the cave men!" Flint went on, while his grim face lighted up. "For with a stone weapon they could hunt the swift wild animals, and so get more food."
Then he stamped his foot and said, "And they could kill enemies better!" And he clenched his fist, while his face grew hard.
The next day, men from the stone yard went out to make a fish trap. They drove sticks across the river bed where the water was low. Then from stick to stick they tied string made of skin. Rushes grew by the river. They took these and wove them in and out of the strings until the trap reached clear across the river. The water could go through the rushes, but the fish could not; and the men speared them or caught them with their hands.
