EARTH—LATITUDE AND LONGITUDE

The film opens with a picture of a globe spinning around. The globe is first split horizontally and then vertically to illustrate the hemispheres. The continents and oceans are then labeled and sound data gives as relative size, etc. A mountain is shown and the distinction and the relative size, temperature are discussed briefly. The system of time determined by longitudinal lines is explained and a system of time-pieces are described. The film is connected to the practical by describing and presenting the rescue of a distressed ship. The ship is directed according to longitudinal and latitudinal readings.