then he caught a startled exclamation.

"What's the matter?" asked Tom anxiously.

"I got a shock!" cried Ned. "I thought you said you had this thing
fixed. Great Scott, Tom! It nearly yanked the arm off me! Is this
a joke?"

"No, old man. No, of course not! Something must be wrong. I didn't
mean that. Wait, I'll take a look. Say, it does seem as if
everything was going wrong with this invention. But I'm on the
right track, and soon I'll have it all right. Wait a second. I'll
be right over."

Tom found that it was only a simple displacement of a wire that
had given Ned a shock, and he soon had this remedied.

"Now we'll try again," he said. This time nothing wrong occurred,
and soon Tom saw the clearest image he had yet observed on his
telephone photo plate.

"Switch me on now, Ned," he called to his chum, and Ned reported
that he could see Tom very plainly.

"So far--so good," observed Tom, as he came from the booth. "But
there are several things I want yet to do."

"Such as what?" questioned Ned.

"Well, I want to arrange to have two kinds of pictures come over