"Is that General Waller's gun?" asked Tom.
"That's where they are going to test it," was the answer.
Eagerly Tom and Ned pressed forward. No one of the many officers and soldiers grouped about the new cannon seemed to notice them. A tall man, who seemed very nervous and excited, was hurrying here and there, giving orders rapidly.
"How is that range now?" he asked. "Let me take a look! Are you sure the patrol vessels are far enough out? I think this projectile is going farther than any of you gentlemen have calculated."
"I believe we have correctly estimated the distance," answered someone, and the two entered into a discussion.
"That excited officer is General Waller," explained Captain Badger, in a low voice, to Tom and Ned.
"I guessed as much," replied the young inventor. Then he went closer to get a better look at the big cannon.
I say big cannon, and yet it was not the largest the government had. In fact, Tom estimated the calibre to be less than twelve inches, but the cannon was very long—much longer in proportion than guns of greater muzzle diameter. Then,
