Norse Summer, Grágás

-51-

K19

The first day of summer is to be a Thursday; from then three months of thirty nights and four nights in addition are to be counted to mid- summer. From midsummer there are to be three months of thirty nights to winter. The first day of winter is to be a Saturday and from then there shall be six months of thirty nights to summer; and ten weeks of summer are to have passed when men come to the General Assembly. Throughout the calendar a day precedes a night.