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Head Length Measurements.

The registering and record made of the foregoing, together with an accurate description of the face and all marks on the body, constitute the third and complete part of this system. To illustrate this part briefly,— measurements are all based on the French metric system, viz: Height, 1 metre, 71 centimetres, 3 millimitres; [pg 15] width, 14 centimetres, 5 millimetres; length of right ear, 6 centimeters, 3 millimetres; length of foot, 2.62; length of middle finger, 11.7; length of little finger, 7.1; length of forearm, 46.3. A metre is 39 inches, a centimetre about 3/8ths of an inch and a millimetre, 1-25th of an inch.

Measurements of Outstretched Arms and Left Foot.

Left Middle Finger Measurement.

The description of heads range in 14 (head) classes, being reckoned from A to Z. The middle fingers have three classes; forearm, three classes; height, three classes, and the little finger, three classes. Only one millimetre or 1-25th of an inch is allowed as the difference between the measurements of any two operators of the Bertillon system in the “bony lengths” of the body. This is so infinitesimal that a measurement taken in France, England, the United States or in Russia by different operators will discover the prisoner, no matter where he may be, and there is no escape unless it be the grave.