Note 47 — Chapter IV · THE MYTHOLOGY AND COSMOGONY OF THE NORSEMEN.
Reading edition
Modsognir and Durin, only mentioned here, refer to some lost myth. There seem to have been three kinds of tribes of Dvergar, having for chiefs, respectively, Modsognir, Durin, Dvalin. “Many man-likenesses in the earth,” namely Dvergar, who are often described as living under the earth.