e down to speak to me, but
Swain did not glance up.

"I can parole him in your custody, I suppose, Mr. Lester?" the coroner
asked.

"Yes; certainly," I assented.

"Sylvester's evidence makes it look bad for him."

"Will you introduce me to Sylvester? I should like to go over the
prints with him."

"Certainly;" and, a moment later, with the prints spread out before
us, Sylvester was showing me their points of similarity.

Godfrey came forward while he was talking and stood looking over his
shoulder.

I had heard of finger-print identification, of course, many times, but
had made no study of the subject, and, I confess, the blurred
photographs which Sylvester offered for my inspection seemed to me
mighty poor evidence upon which to accuse a man of murder. The
photographs showed the prints considerably larger than life-size, but
this enlargement had also exaggerated the threads of the cloth, so
that the prints seemed half-concealed by a heavy mesh. To the naked
eye, the lines were almost indistinguishable, but under Sylvester's
powerful glass they came out more clearly.

"The thumb," said Sylvester, following the lines first to the right
and then to the left with the point of a pencil, "is what we call a
double whorl. It consists of fourteen lines, or ridges. With the
micrometer," and he raised the lid of a little leather box which stood
on the table, took out an instrument of polished steel and applied it
to one of the photographs, "we get the angle of these ridges. See how
I adjust it," and I watched him, as, with a delicate thumbscrew, he
made the needle-like points of the finder coincide with the outside
lines of the whorl. "Now here is a photograph from the other robe,
also showing the thumb," and he applied the machine carefully to it.
"It also is a double whorl of fourteen lines, and you see the angles
are the same. And here is the print of the right thumb which your
client made for me." He applied the micrometer and drew back that I
might see for myself.

"But these photographs are enlarged," I objected.

"That makes no difference. Enlargement does not alter the angles.
Here are the other prints."

He compared them one by one, in the same manner. When he had finished,
there was no escaping the conviction that they had been made by the
same hand--that is, unless one denied the theory of finger-print
identification altogether, and that, I knew, would be absurd. As he
finished his demonstration, Sylves