Marvels of Scientific Invention - The Original Classic Edition

Contents: Digging With Dynamite, Measuring Electricity, The Fuel Of The Future, Some Valuable Electrical Processes, Machine-Made Cold, Scientific Inventions At Sea, The Gyro-Compass, Torpedoes And Submarine Mines, Gold Recovery, Intense Heat, An Artificial Coal Mine, The Most Striking Invention Of Recent Times, How Pictures Can Be Sent By Wire, A Wonderful Example Of Science And Skill, Scientific Testing And Measuring, Colour Photography, How Science Aids The Stricken Collier, How Science Helps To Keep Us Well, Modern Artillery