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 on the fortresses. That was on the second day. The three disloyal regiments had been destroyed in the fortresses to the last man. The fortresses were crowded with Mercenaries, the wind blew in the right direction, and up went our balloons from one of the office buildings in the city.

Now Biedenbach, after he left Glen Ellen, had invented a most powerful explosive—"expedite" he called it. This was the weapon the balloons used. They were only hot-air balloons, clumsily and hastily made, but they did the work. I saw it all from the top of an office building. The first balloon missed the fortresses completely and disappeared into the country; but we learned about it afterward. Burton and O'Sullivan were in it. As they were descending they swept across a railroad directly over a troop-train that was heading at full speed for Chicago. They dropped their whole supply of expedite upon the locomotive. The resulting wreck tied the line up for days. And the best of it was that, released from the weight of expedite, the balloon shot up into the air and did not come down for half a dozen miles, both heroes escaping unharmed.

The second balloon was a failure. Its flight was lame. It floated too low and was shot full of holes before it could reach the fortresses. Herford and Guinness were in it, and they were blown to pieces along with the field into which they fell. Biedenbach was in despair—we heard all about it afterward—and he went up alone