The rabbit did not see Mr.Fogg, so he put on more caps, and they snapped too.
Then Mr.Fogg cleaned out the nipples again, primed them and leveled the gun at a fence.

The caps snapped again.

Then Mr.Fogg became furious, and in his rage he expended forty-two caps trying to make the gun go off.

When the forty-second cap missed also, Mr.Fogg thought, perhaps, there might be something the matter with the inside of the gun, and so he sounded the barrels with his ramrod.

To his utter dismay, he discovered that both barrels were empty.