Structural database holdings

Dear Bill

I'd like to correct a factual error in the report of the Seattle microsymposium on "25 Years of the PDB", which states that I predicted more than 600,000 structures in the PDB by 2010 [IUCr Newsletter, Volume 5, No. 2. 1997, page 14]. Actually this prediction applied to the Cambridge Structural Database. The prediction for the PDB by 2010 was over 120,000 if present trends continue.