A. CONAN DOYLE
NEW YORK
GEORGE H. DORAN COMPANY
Copyright, 1905, 1908, 1909, 1910, 1911, 1913, 1914, 1918, 1919,
By A. Conan Doyle
Copyright, 1910,
By Charles Scribner's Sons
Copyright, 1911,
By Associated Sunday Magazines, Inc.
Copyright, 1908,
By The McClure Company
Copyright, 1900, 1902,
By The S. S. McClure Company
Copyright, 1894,
D. Appleton & Company
THE GREAT KEINPLATZ EXPERIMENT
AND OTHER TALES OF THE UNSEEN
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PRINTED IN THE UNITED STATES OF AMERICA