L. W. W. W. W.
Now a whorl occurring in the first pair would count sixteen, in the second, eight, and so on. The loops are ignored. Consequently, the number in the above formula is:
0. 0. 4. 0. 0.
0. 8. 4. 2. 1.
These are added together and become 4-15. The figure 1 is added above and below, and the searcher knows that he has to look for the record he wants in the sixteenth file of Number 5 horizontal row in a cabinet specially arranged.
Of course, sub-classification is carried much farther than this, but it is scarcely necessary to elaborate the point.
Day by day, the prison governors from all parts of the country are sending in records to be added to the files, and police authorities, also from all parts of the country, are asking for prisoners to be identified.