Classification and uses of finger prints / by Sir E.R. Henry.

Edward Henry

Date:: 1913

Catalogue details

Licence: In copyright

Credit: Classification and uses of finger prints / by Sir E.R. Henry. Source: Wellcome Collection.

39/168 (page 29)

Fig. 13. hence the name Tented Arch (Fig. 13). In order to demarcate clearly the line which separates Tented Arches from those Loops whose ridges have a more or less vertical trend, it is held that, if on either side of the axis even one ridge recurves, the impression is a Loop (Fig. 12.) The meeting of two ridges at a sharp angle resulting from their running into each other through not maintaining their parallelism of direction, is not to be confused with recurving. The recurving ridge must be wholly on one side of the axis. Illustrations 17 to 24 inclusive are Tented Arches. Illustration 25 has one recurving ridge to the right of the axis ; Illustration 26 has one to the left (some converging ridges may be noticed in this impression) ; Illustration 27 has two recurving ridges, to the right of the axis, so these impressions 25, 26, and 27 would be classed as Loops.