00 meters, or 11 miles. This is 650 meters thus find their way back to the observatories. addition to the regular work of each observatory. Sounding balloons reach astonishing elevations, and higher than the highest ascension from St. Louis, These international weeks may fall in the spring, sum-… … I'lvpsiriniT for a balloon ascent. Controlling a kite with a hand windlass. A balloon ascent on Lake Victoria Nyanza* 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…
