Well yes, but that wasn't really what I was asking, though no doubt I didn't express myself clearly enough. No doubt there will be reviews and I know where useful ones are likely to be found.
What I really wanted to know was what the central text is and I don't think it unreasonable to ask pre publication, I don't have a problem with it being supplemented by other material and drafts, I was just curious, since clearly it isn't an original story, as to whether it was Tolkien writing a version of the Finnish Legend based on his knowledge of the source legends (equivalent to say the Roger Lancelyn Green "Tales of the Greek Heroes" which inspired an interest in Classical Mythology in me as a child) or if it is a translation of an / the original Finnish text.
No doubt if I dig hard enough I can find out for myself I just thought someone might know and have interesting things to say about it, this being a discussion board and what have you... never mind eh
