Introduces the English countryside, life in London, and examples of English institutions and values, with the typical experiences a boy and girl have...
Presents the history of the U S from the inauguration of Franklin D Roosevelt to the eve of World War II, including the Great Depression and New Deal...
Shows how the spectroscope, radio and optical telescopes are used to provide information about the origin of comets, meteors and planetoids. Special...
Explores the distinctive features of the major rivers of the continent, and discusses their contributions to the farming, recreation, transportation...