Monday came, also, the last day before the election, with its lull
in the heart-breaking activities of the campaign. There were still
no pictures published, but Kennedy was working in the laboratory
over a peculiar piece of apparatus.

"I've been helping out my own shadows," was all the explanation he
vouchsafed of his disappearances, as he continued to work.

"Watching Mrs. Ogleby?" I hinted.

"No, I didn't interfere any more with Miss Kendall. This was
someone else--in another part of the city."

He said it with an air that seemed to imply that I would learn all
about it shortly and I did not pursue the subject.

Meanwhile, he was arranging something on the top of a large, flat
table. It seemed to be an instrument in two parts, composed of
many levers and discs and magnets, each part with a roll of paper
about five inches wide.

On one was a sort of stylus with two silk cords attached at right
angles to each other near the point. On the other was a capillary
glass tube at the junction of two aluminum arms, also at right
angles to each other.

It was quite like old times to see Kennedy at work in his
laboratory again, and I watched him curiously. Two sets of wires
were attached to each of the instruments, and they lead out of the
window to some other wires which had been strung by telephone