Unit 1 Unsolved Mystery—The Sea

Unit 2 Winter Comes to the Animal World

Unit 3 Lost over the Atlantic

Unit 4 The Star of the Magi

Unit 5 Buried Treasure

Unit 6 Lady of the Wasteland

Unit 7 Eighteenth Century Style

Unit 8 The Giants of Easter Island

Unit 9 Michigan's Ma rching Dunes

Unit 10 V-Day in the Polio War

Unit 11 Sputtering African Fuse

Unit 12 Two for a Nickel

Unit 13 The"Upstart Crow"

Unit 14 The Real She rlock Holmes

Unit 15 Is Your Judgment Warped?

Unit 16 The Truth about Those"Invisible"Ads

Unit 17 Edward R.Murrow Reports on B ritain Under Bombs

Unit 18 Is a Race of Robots Possible?

Unit 19 The War Against Hunger

Unit 20 Come Aboa rd an Atomic Sub!

Unit 21 Superstitious?Here's Why!

Unit 22 The Cloak-and-Dagger Struggle to keep New Cars Secret

Unit 23 Jerry Potts,Scout Supreme

Unit 24 Danger by Candlelight

Unit 25 Strange Money

Unit 26 The G reat Chicago Fire

Unit 27 1066 A.D.The Norman Conquest

Unit 28 Who Knows?

Unit 29 The Beginnin9 of the Healing Art

Unit 30 What's So Funny?