A full cast of audio performers presents the Lewis and Clark Expedition in a series of eight stand-alone productions suitable for broadcast. Taken from the diaries of Meriwether Lewis and William Clark, as well as from those of several other members of the Corps of Discovery, the series follows the explorers from the creation of the Corps to its members' final resting places. Different voices lend realism to the stories, but individual performances, overall, are perky rather than excited, awestruck, terrified, or despairing as situations suggest. Music and special effects sometimes obscure the spoken word. Still, for a middle school audience, this production would make the story more fun than dull. R.P.L.