LIST OF ILLUSTRATIONS[ Making stone tools . . . . . . _Frontispiece_ ][ All at once, the goat stood up on her hind legs ][ Strongarm ][ A big black bear came along ][ Then he sat down by the fire to make his picture of the bear ][ Ram horns ][ Sewing together skins of wild oxen ][ A little bone ][ Bone needle ][ Broken hunting club ][ The bees flew off humming angrily ][ The edge of the pond ][ And, for fun, set it against the string ][ Broken hunting club (2nd version) ][ Cattle horns ][ So they lay down on the ground and began to call ][ A nest full of young eagles ][ She scraped off all the meat and fat ][ Tiger's tooth and bear's claw ][ Lion ][ Lion's tooth ][ Stone tools ][ Stone axe ][ Woven basket ][ Little wild pigs were eating the acorns ][ The sparks came like a flame and caught the dry leaves ][ The boys listened in wonder ][ Shelter of branches ][ Acorns ][ Tiger ][ Tiger's tooth ][ He struck with his hammer stone ][ He held the pebble in his left hand and struck it a sharp blow ][ Deer antlers ][ Forest scene ][ Spear ][ The women and children went to pick berries ][ The women and children ate and ate the sweet fruit ][ Snowy owl in tree ][ Women with baskets ][ Skin bag with pull string ][ Herd of reindeer ][ They dived into the river and swam away, pulling the raft ][ Flock of white swans ][ The sea ][ Clam and oyster shells ][ Dug-out boat ][ They began to cook the fish ][ The people took the fish in their hands ][ Cutting down a tree ][ A flounder ][ Seaweed ][ Thorn learns to swim ][ Clay bowls ][ Mammoth trapped in swamp ][ Wolves ][ Throwing a spear ][ A North American Indian ][ A stone arrow head ][ A stone ax ][ Picture of reindeer, scratched on slate; found in a cave in France ][ Eskimo by their winter huts; drawn by an Eskimo ][ A bone awl; found in a cave in England ][ Drawing of a mammoth, on a piece of mammoth tusk;found in a cave in France ][ A flint knife; found in Australia ]