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قراءة كتاب The Detection of Forgery A Practical Handbook for the Use of Bankers, Solicitors, Magistrates' Clerks, and All Handling Suspected Documents
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The Detection of Forgery A Practical Handbook for the Use of Bankers, Solicitors, Magistrates' Clerks, and All Handling Suspected Documents
THE
Detection of Forgery.
A PRACTICAL HANDBOOK
FOR THE USE OF
BANKERS, SOLICITORS, MAGISTRATES' CLERKS,
AND ALL HANDLING SUSPECTED DOCUMENTS.
BY
DOUGLAS BLACKBURN
(Late Expert to the Natal Criminal Investigation Department, and the Transvaal Republic)
AND
Captain WAITHMAN CADDELL.
LONDON:
CHARLES & EDWIN LAYTON,
FARRINGDON STREET, E.C.
1909.
ERRATUM. (Page 15.)
Owing to the averages given in the table on page 15 being printed from some incomplete manuscript they are incorrect. It is obvious that the proper averages are—
| 7¼ | 6½ | 5¾ | 7½ | 16¼ | 21 | 20¾ | 20¾ |
CONTENTS.
| CHAPTER | Page | |
| Introduction | 5 | |
| I.— | The Principles of Handwriting Analysis | 7 |
| II.— | Measurement and its Appliances | 13 |
| III.— | Terminology | 17 |
| IV.— | Classes of Handwriting | 19 |
| V.— | How to Examine a Writing | 21 |
| VI.— | The Alphabet in Detail | 24 |
| VII.— | The Capitals | 29 |
| VIII.— | Punctuation | 31 |
| IX.— | Paper and Watermarks | 34 |
| X.— | Inks | 38 |
| XI.— | Erasures | 42 |
| XII.— | Pencils and Stylographs | 45 |
| XIII.— | Anonymous Letters and Disguised Hands | 47 |
| XIV.— | Forged Literary Autographs | 52 |
| XV.— | Forged Signatures | 60 |
| XVI.— | The Expert in the Witness-box | 68 |
| XVII.— | Handwriting and Expression | 72 |
| XVIII.— | Bibliography of Handwriting | 78 |
INTRODUCTION.
The object of this little work is to assist those who may occasionally be called upon to form an opinion as to the genuineness of signatures, alterations in cheques, and the varied doubtful documents that demand the serious consideration of business men by way of a preliminary to "taking further steps."
It is the first attempt published in England to explain the principles upon which the comparison and examination of handwriting are conducted by experts. It is, and can only be, an outline of suggestions how to

