"There is no such good fortune in this case, however," he resumed,
placing the paper between the two small arms. "But by measurements
made by this vernier micrometer caliper I can find the precise
thickness of the paper as compared to the other samples."
He turned to a microscope and placed the corner of the paper under
it. Then he drew from the drawer the four scraps of paper which
had already been sent to us, as well as a pile of photographs.
"Under ordinary circumstances," he explained, "I should think that
what I am doing would be utterly valueless as a clue to anything.
But we are reduced to the minutiae in this affair. And to-day
science is not ready to let anything pass as valueless."
He continued to look at the various pieces of paper under the
microscope. "I find under microscopic examination," he went on,
addressing Inez, but not looking up from the eye-piece as he
shifted the papers, "that the note you have received, Senorita
Mendoza, is written on a rather uncommon linen bond paper. Later I
shall take a number of microphotographs of it. I have here, also,
about a hundred microphotographs of the fibres in other kinds of
paper, many of them bonds. These I have accumulated from time to
time in my study of the subject.
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