The World Book Year Book 1985 (1985, Year Book)Reviews the events of 1984. The special reports section has nine articles on the troubles Africa faces after a quarter century of independence, preserving the remnants of the North American tallgrass prairie, the new science of gene splicing, the new entertainment of music videos, the increasing importance of sports for U. S. colleges, new discoveries made during archeological excavations of Thomas Jefferson's Monticello, the increasing numbers of