'Sæmundar og Snorra Edda' is a 1760 Icelandic manuscript
by Ólafur Brynjúlfsson.
There are two major sources
that chronicle the legends of Norse mythology:
The 'Poetic Edda' is a collection of alliterative poems (Edda) from the
13th century Icelandic Codex Regius. The poems
are thought to date from the 10th century.
The 'Younger Edda' which includes a narrative of Norse mythology and a
manual for understanding the nuances of the alliterative poetics, was written
by the Icelandic historian and parliamentarian, Snorri Sturluson an Icelandic historian, poet, and politician. He was elected twice as a lawspeaker at the Icelandic parliament, the Althing. He was the author of the Prose Edda or Younger Edda, which consists of Gylfaginning ("the fooling of Gylfi"), a narrative of Norse mythology, the Skáldskaparmál, a book of poetic language, and the Háttatal, a list of verse forms. He was also the author of the Heimskringla, a history of the Norwegian kings that begins with legendary material in Ynglinga saga and moves through to early medieval Scandinavian history.
The Ólafur
Brynjúlfsson manuscript contains material from both the Younger and Elder Edda
and is online at the Royal Danish Library, (link provided)