Fig. 4

Biting or fusion process. Calcium distribution map of 635 G 5 (a) with the letter pair bb in the word “sabbato” in the red box (b). The graph by Erik Kwakkel (d) shows the process of fusion or biting of the letter pairs bb/pp in yellow. [13] The two examples (c) show the biting process of the letter pair pp, written separately on the left (Lucretius, De rerum natura, ninth century) and written as one entity on the right (Eusebius-Sigebert, Chronicon, second half of the twelfth century)