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Show WALTER WELLMAN BALLOON HAS MANY IMPROVEMENTS Paris, .Tune 6.-Waltcr Wcllman. "ho is about to undertake another balloon expedition in search of the north pole, and Melvln Vaniman, his engineer, have added manv improvements improve-ments to their dirigible balloon. It has been equipped with an extra set of propel lors capable of bein-shifted bein-shifted when In motion, so that the balloon, be forced up or down at will They also have perfected an ingenious in-genious sun compass, upon tho principle prin-ciple of the sun dial and have devised a theoretical system for arctic navl- gallon by means of curves. ine party wll leave for Spitsbergen in a fortnight. The start for the pole is expected to take place about August 1. , |