Note 183 — SECTION V. ANTHROPOLOGY.

Of course the first sibilant, the sign of possession, is not used when the noun is otherwise declined. For instance, Jón Arason, often written by foreigners Aræson, is the son of Are, whose oblique case is Ara; yet there are popular exceptions, e.g., Bjarnarson (pron. Bjatnarsonj, son of Björn, is vulgarly pronounced, and even written, Björnsson.