Recounts the events of the Second World War, discussing the United States entrance into the war, and describes how the Germans flattened the streets of London.
Introduces the animals and plants of the Amazon basin and environmental conditions in the region through the diary entries of an American scientist and the letters she sends to her sponsors to report
A guide to competitive swimming demonstrates such skills and techniques as freestyle, backstroke, breaststroke, butterfly, and racing starts and turns, and includes information about warming up, diet,
