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Updated: May 10, 2025
Now commenced the most difficult part of the course. The Caledonian Canal runs among lofty mountains, and the numerous air-eddies and swift air-streams rushing through the mountain passes tossed the frail craft to and fro, and at times threatened to wreck it altogether.
The superiority of readings thus obtained is obvious from the fact that fresh air-streams are constantly playing on the instruments. A year or two later a totally dissimilar kite was introduced by Mr. Lawrence Hargrave, of Sydney, Australia.
Small parachutes, crumpled paper, and other such-like bodies as are commonly thrown out and relied on to declare the lower drifts, are not wholly trustworthy, for this reason that air-streams are often very slender, mere filaments, as they are sometimes called, and these, though setting in some definite direction, and capable of entrapping and wafting away some small body which may come within their influence, may not affect the travel of so big an object as a balloon, which can only partake of some more general air movement.
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