“In the southern regions of Africa, they content themselves,” resumed the doctor, “with shutting up the criminal in his own hut with his cattle, and sometimes with his family. They then set fire to the hut, and the whole party are burned together. I call that cruel; but, like friend Kennedy, I think that the gallows is quite as cruel, quite as barbarous.”

Joe, by the aid of his keen sight, which he did not fail to use continually, noticed some flocks of birds of prey flitting about the horizon.

“They are eagles!” exclaimed Kennedy, after reconnoitring them through the glass, “magnificent birds, whose flight is as rapid as ours.”

“Heaven preserve us from their attacks!” said the doctor, “they are more to be feared by us than wild beasts or savage tribes.”

“Bah!” said the hunter, “we can drive them off with a few rifle-shots.”

“Nevertheless, I would prefer, dear Dick, not having to rely upon your skill, this time, for the silk of our balloon could not resist their sharp beaks; fortunately, the huge birds will, I believe, be more frightened than attracted by our machine.”

“Yes! but a new idea, and I have dozens of them,” said Joe; “if we could only manage to capture a team of live eagles, we could hitch them to the balloon, and they’d haul us through the air!”

“The thing has been seriously proposed,” replied the doctor, “but I think it hardly practicable with creatures naturally so restive.”

“Oh! we’d tame them,” said Joe. “Instead of driving them with bits, we’d do it with eye-blinkers that would cover their eyes. Half blinded in that way, they’d go to the right or to the left, as we desired; when blinded completely, they would stop.”

“Allow me, Joe, to prefer a favorable wind to your team of eagles. It costs less for fodder, and is more reliable.”