Got everything else a couple of days ago, but still totally baffled by the NW illustration (NWI), even after studying the long careful hints from #26 onwards to #103.
I'm confused by the statement way back that the cells involved 'are
all non-contiguous' - I can see an obvious sequence for one of the parts of NWI - but the cells are all
contiguous and in sequence (with an ambiguity at the end).
For the other thematic word I understand that the three -four-letter names are all ruled out, and that I should be looking for the longer name given in Wiki - and that the
scale is important - but contiguous or non-contiguous, the only possible starting point doesn't appear to lead to any possible ordered sequence - and whatever the sequence is, it must at some point be contiguous with the other sequence, I'm told. I can see all the constituent letters of the long name in the NW quadrant, but not in order, and not forming a regular shape in any way that I can see.
Confusingly, there's a cluster of letters almost making up an alternative 6-letter version for this thematic word that isn't given in Wiki, but is used in the remarkable novel - one of my favourites - that is based entirely on this theme; but this is evidently a coincidence.
I'm taking it that it's the actual name that we're looking for, not some synonym, and that like the other three illustrations the letters are in their correct sequence, and forming a relevant shape.
I'm certain that I've got no mistakes in my entries, so it looks as though I'll just have to keep on staring, and it will miraculously pop out, as so many contributors have reported.
If anyone can think of a sufficiently discreet nudge I will be most grateful.