Errata

page 48: 'Azzcddin'->'Azzeddin' page 136: 'neighbourbourhood'->'neighbourhood' page 287: 'certicate'->'certificate' page 337: 'desribed'->'described' page 345: 'commmunicated'->'communicated' page 350: 'X.s cript.'->'X script' page 362: 'sæeulares'->'sæculares' page 364: 'secnlars'->'seculars' page 368: 'existenc e'->'existence'