The stories illustrate, in fact,
the application to the detection of crime of the ordinary methods of
scientific research. I may add that the experiments described have in
all cases been performed by me, and that the micro-photographs are, of
course, from the actual specimens.
I take this opportunity of thanking those of my friends who have in
various ways assisted me, and especially the friend to whom I have
dedicated this book; by whom I have been relieved of the very
considerable labour of making the micro-photographs, and greatly
assisted in procuring and preparing specimens. I must also thank Messrs.
Pearson for kindly allowing me the use of Mr. H. M. Brock's admirable
and sympathetic drawings, and the artist himself for the care with which
he has maintained strict fidelity to the text.
R. A. F.
Gravesend,
_September 21, 1909_.
CONTENTS
I. THE MAN WITH THE NAILED SHOES
II. THE STRANGER'S LATCHKEY
III. THE ANTHROPOLOGIST AT LARGE
IV. THE BLUE SEQUIN
V. THE MOABITE CIPHER
VI. THE MANDARIN'S PEARL
VII. THE ALUMINIUM DAGGER
VIII. A MESSAGE FROM THE DEEP SEA
ILLUSTRATIONS
PROFESSOR POPPLEBAUM IS ENLIGHTENED, _Frontispiece_
PLAN OF ST.
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