I should see it, but I don't.
Perhaps I'm just missing the obvious (wouldn't be the first time).
But for me the original link by Martinus to his errata list failed.
I found it with only a little effort on my part - it is under the
entry on the B&N "Complete Fiction" entry. I haven't stumbled on any
other errata lists however and I did try clicking around the same site
to find them.
The site does give this answer to what's definitive:
Quote:Arkham House is the definitive source for Lovecraft’s fiction and letters.
His stories have been edited and corrected by S.T. Joshi based on Lovecraft’s original
autograph and typewritten manuscripts.
So I suppose I could buy the Arkham editions but in this case (Modern Library's
Definitive Ed.) the source is that same Arkham House and credit is given to S.T.
Joshi as well. The copyright page is unclear but seems to imply he helped with the
Modern Library version since the ("definitive") Arkham House editions were first
copyrighted when he was still six years old.
Therefore the bottom line in, "What is definitive?" seems to be the Arkham House Editions.
I would gladly accept correction if needed.
-Cathexis