Joe got very pale.

“Poor fellow!” said the doctor. “Mr. Kennedy, you and I weigh, unless I am mistaken, about four hundred pounds—so that you’ll have to get rid of at least that weight, since it was put in here to make up for us.”

“Throw away four hundred pounds!” said Joe, piteously.

“And some more with it, or we can’t rise. Come, courage, Joe!”

The brave fellow, heaving deep sighs, began at last to lighten the balloon; but, from time to time, he would stop, and ask:

“Are you going up?”

“No, not yet,” was the invariable response.

“It moves!” said he, at last.

“Keep on!” replied the doctor.

“It’s going up; I’m sure.”