A map of the world hangs in a break room in UNH's Jere A. Chase Ocean Engineering Building. Over it a banner queries: "Where's Larry?" In answer, several cartoon Larrys, each wearing a red-and-white striped jersey and a wry expression, are positioned around the equator. Not surprisingly, the map is out of date. The real Larry Mayer-who spent one year out of the last six at sea-is just back from the Arctic.