41.   Vast stretches of tallgrass prairie were engulfed in fire.

42.   Vast stretches of the country, such as the eastern jungle, have never been explored.

43.   Vast stretches of the plains, from Texas and New Mexico to Nebraska and South Dakota, consist of classic sand dunes covered thinly by vegetation.

44.   When the world cooled again, the seas retreated, revealing vast stretches of terra firma ripe for colonization.

45.   While small patches of desolation remain, the vast empty stretches have all been renewed.

46.   Ports and harbors were closed along a vast stretch of Pacific coastline that included the states of Michoacan, Colima, Jalisco and Guerrero.

47.   Already, vast stretches of the industrial northeast -- formerly Manchuria -- are an industrial wasteland.

48.   Beyond Vavuniya is a vast stretch of Tiger territory except for a government enclave in the Jaffna peninsula.

49.   But it does happen elsewhere along the vast stretch of U.S.-Canadian frontier between the Great Lakes and the Pacific Ocean.

50.   China and Vietnam have overlapping claims to vast stretches of the South China Sea.