From 8.30am on Thursday 3 December the Main Library will be open 24x7 until midnight on Thursday 17 December. The IS Helpdesk staffed hours remain unchanged; self-services operate when the Helpdesk is closed.
I am the Liaison Librarian for Chemistry and Physics at the University of Edinburgh.
See also, Guide to Resources in Science and Engineering at http://www.lib.ed.ac.uk/forcolleges/scienghome.shtml