Thanks for the info on PURLs, Henry. I believe it will be very useful - as will Peter's additional points.

The system is not quite working yet, but it will soon be so! (HRz)

There will be many more PURLs than telephone numbers in the world unless only the toplevel is taken. (PMR)

Let's hope the idea receives general support, despite the potentially enormous files. It is indeed amazing how quickly a "bookmarks" list goes out of date, a point I've already had to watch in my brief career looking after commercial sites. ---- Musing about (perhaps, thanks to mauveline, 'turning over'?), the possibility of a MOTM and reading to your recent comments, I thought of offering DAPC (diacetylenylphospatidyl choline - which is not as fearsome as it sounds, is "bio active" (in a surface modification sense) and has an interesting geometry) if only for the reason that I spent a good part of 1994 early '95 working on the ESCA of its coating systems and have a good story to go with some spectra. Two points: I have "Chen 3D" pictures of the structure, but haven't yet found a conversion routine to .pdb format. Does one exist? ESCA spectra are currently being "worked on" by an ISO commitee (ISO/TC 201/SC3) which is about to propagate a new data transfer standard (based on the 'VAMAS' rather than JCAMP format: see:- "Surface & Interface Analysis", Vol. 21, 615 - 620 (1994) and S.I.A. Vol. 13, 63 - 122 (1988)) I would be interested to hear comments from users on JCAMP or any other favourite format for generalised spectrum transfer. ----------------------------- Dr Alan Carrick, Acolyte Science Consultancy, Knutsford, WA16 6LZ, England Tel: (+44) 1925 75 4064 alan@acolyte.u-net.com 100572,753@CompuServe.com --(end)---------------------- ----- chemweb: A list for Chemical Applications of the Internet. Archived as: http://www.ch.ic.ac.uk/hypermail/chemweb/ To unsubscribe, send to listserver@ic.ac.uk the following message; unsubscribe chemweb List coordinator, Henry Rzepa (rzepa@ic.ac.uk)