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POPULAR SCIENCE MONTHLY.
1854, almost destroyed the fleets of France and England. As a storm had raged several days earlier in France, Vaillant, the French Minister of War, directed that investigations be made to see if the
Fig. 1.—General Circulation of the Atmosphere.
two storms were the same, and if the progress of the disturbance could have been foretold. It was demonstrated that the two were in reality one storm, and that its path could have been ascertained and the fleet forewarned in ample time to reach safety.