Fingerprint Diagram, 1940. Taken from Frederick Kuhne, "The Finger Print Instructor." Based upon the Sir E. R. Henry System of Classifying and Filing. Various characteristic points that may be used in comparing impressions. Numbers 1 5 33 and 34 are described as short ridge lines 2 9 14 16 19 20 22 25 and 32 as a bifurcation of ridges 3 4 6 7 8 10 11 13 17 18 21 23 24 27 28 29 30 and 31 as abrupt ending ridges 15 and 26 are called islands and 12 shows several small ridge dots and ridge terminations caused by a cut.