List of commonest index-headings 140 Number of headings to 100 sets, according to the digits that are noted 142 Transitional cases; sub-classifications 143-144 Symbols for patterns 144 Storing cards 145 Number of entries under each head when only the first three fingers are noted 146 CHAPTER X PERSONAL IDENTIFICATION 147 Printers and photographers 147 Use of means of identification to honest persons; in regard to criminals 148-149 Major Ferris, Mr. Tabor, N. Borneo 149-153 Best digits for registration purposes 153 Registration of criminals--M. Bertillon 154 Details of _Bertillonage_; success attributed to it; a theoretic error 155-158 Verification on a small scale 158-162 Experiences in the United States 163 Body marks; teeth 165-166 Value of finger prints for search in a register 166 Identification by comparison 167 Remarks by M. Herbette 168 CHAPTER XI HEREDITY 170 Different opinions 170 Larger meaning of heredity 170 Connection between filial and fraternal relationships 171 Fraternity, a faulty word but the best available 171 A and B brothers 172 Test case of calculated randoms 173 Fraternities by double A. L. W. events 175 The C. standard patterns 177 Limitation of couplets in large fraternities 178 Test of accurate classification 179 Fraternities by double C. events 181 Centesimal scale applied 184 Twins 185 Children of like-patterned parents 187 Simple filial relationship 190 Influences of father and mother 190 CHAPTER XII