The size of Glaurung

I just wanted to share some of my thoughts considering Glaurung, probably known to anyone who has read The Silmarillion and/or The Children of Húrin as the father of dragons. His size is never clearly specified by Tolkien and different people seem to have widely different opinions on this. That being said I do not claim to have a correct answer to this, I just want to say what I think and why.

I wouldn't want Tom Bombadil in the movie

Tom Bombadil, illustrated by Tim and Greg Hildebrandt Although Tom Bombadil does not appear in Peter Jackson's or Ralph Bakshi'...