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gas-buoyed airship.  In Europe or America there is always the alternating day and night, with high temperatures at midday, low temperatures at midnight or after.  The difference between the two, within 24 hours, is often 30 to 40 degrees Fahrenheit.  A change of 20 degrees Fahrenheit in the temperature of the air changes the lifting power of a ship like the America about 800 pounds and would effect a change of 1,600 pounds in a ship like Zeppelin's, twice as large.  When Count Zeppelin's record-breaking voyage of about 300 miles was brought to an end through the need of a descent to the ground, ostensibly for repairs, the actual cause was a diminution of lifting power due to the low temperature of the night and the condensation of the gas.  Immediately after landing Count Zeppelin telegraphed for gas in steel bottles to replenish his aerostat; and it was this descent, and the assault upon the

[[image - photograph]]
[[caption]] Rear View of the Airship Hall -- Excursion Steamers in Port [[/caption]]

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