ing balloons reach astonishing elevations, and higher than the highest ascension from St. Louis, These international weeks may fall in the spring, sum- which, by a coincidence, was also the first one to be travel at speeds varying from 40 to 80 miles an hour. - (Continued on page 399.) 9 Beading up… … Noting the course of pilot balloons with special theodolites. The pilot balloons are liberated to ascertain the direction and velocity of the wind before the liberation of registering balloons. GERMAN METEOROLOGICAL INVESTIGATIONS IN EAST AFRICA.
