Our dwarfs are all the same, but our elves are different - How come? (Assuming both are real)

http://notionclubpapers.blogspot.co.uk/2016/06/are-elves-and-dwarves-really-real.html

Plus - The Norman to Anglo-Saxon transition in Tolkien's unfinished Notion Club Papers:

http://notionclubpapers.blogspot.co.uk/2016/06/transition-between-french-norman-to.html