"He is killed! he is killed!" cried Jerry.  "No."  In an instant, with a clasp-knife in his hand, Fleming was up again and plunging away at the throat of the brute.  He rose to his knees.  He gave stab after stab, and prevented the puma from fixing its jaws on his own throat, which seemed the aim of the enraged animal.  The brave Surley was at his flanks tearing and biting at them with all his might.