[4] The closing strophe of MS. C calls the poem der _Nibelunge liet_, or Nibelungenlied, i.e. the lay of the Nibelungen, and this is the title by which it is commonly known. MSS. A and B have in the corresponding strophe _der Nibelunge not_, i.e. the 'need', 'distress', 'downfall' of the Nibelungen. In the title of the poem 'Nibelungen' is simply equivalent to 'Burgundians': the poem relates the downfall of the Burgundian kings and their people. Originally the Nibelungen were, as their name, which is connected with _nebel_, 'mist', 'gloom', signifies, the powers of darkness to whom the light-hero Siegfried fell a prey. After Siegfried obtains possession of the treasure the name Nibelungen is still applied to Alberich and the dwarfs who guard it and who are now Siegfried's vassals. Then after Siegfried's death the name is given to the Burgundians. It is a mistake to suppose that the name was applied in each case to those who became possessors of the hoard, for Siegfried himself is never so designated. 2. Stages in the Evolution of the Poem Hand in hand with the discussion of the relative authenticity of the manuscripts went the consideration of another more important literary question,--the evolution of the poem itself. Even if we knew nothing of the history of the Nibelungen saga as revealed in the Edda and through other literary and historic sources, a reading of the poem would give us unmistakable hints that it is not, in its present form, a perfect literary unit. We detect inconsistencies in matter and inequalities of style that prove it to be a remodelling of material already existing in some earlier form. What, then, has been the history of its evolution? How did this primeval Siegfried myth, this historical saga of the Burgundians and Attila, first come to be part of the poetic stock of the German people? What was its earliest poetic form, and what series of transformations did it pass through during seven centuries of growth? These and many kindred questions present themselves, and the search for answers to them takes us through many winding labyrinths of the nation's contemporary history. Few products of German literature have so exercised and tantalized critics as the Nibelungenlied.