He raised in the air, as he said this, a spherical ball, which he held between his thumb and forefinger.

“Another instance,” he said, “to be added to those mentioned by our great masters of surgery, of the oddities of projectiles. This one, instead of pursuing its way straight through the body of our poor friend, had turned around the ribs, and gone to its place close by the vertebral column. There I found it, almost on the surface; and nothing was needed to dislodge it but a slight push with the probe.”

The shot-gun taken from the hands of the murderer had been deposited in a corner of the large room: they brought it up, tried the ball, and found it to fit accurately.

“Now we have a tangible proof,” exclaimed a young ensign, “an unmistakable proof, that the wretch whom our men have caught is Daniel’s murderer. Ah, he might as well have kept his confession!”

But the old surgeon replied with a dark frown,—

“Gently, gentlemen, gently! Don’t let us be over-hasty in accusing a poor fellow of such a fearful crime, when, perhaps, he is guilty only of imprudence.”

“O doctor, doctor!” protested half a dozen voices.

“I beg your pardon! Don’t let us be hasty, I say; and let us consider, For an assassination there must be a motive, and an all-powerful motive; for, aside from the scaffold which he risks, no man is capable of killing another man solely for the purpose of shedding his blood. Now, in this case, I look in vain for any reason, which could have induced the man to commit a murder. He certainly did not expect to rob our poor comrade. But hatred, you say, or vengeance, perhaps! Well, that may be. But, before a man makes up his mind to shoot even the man he hates like a dog, he must have been cruelly offended by him; and, to bring this about, he must have been in contact, or must have stood in some relation to him. Now, I ask you, is it not far more probable that the murderer saw our friend Champcey this morning for the first time?”

“I beg your pardon, commandant! He knew him perfectly well.”

The man who interrupted the doctor was one of the sailors to whom the prisoner had been intrusted to carry him to prison. He came forward, twisting his worsted cap in his hands; and, when the old surgeon had ordered him to speak, he said,—