The British Library is no longer supplying theses for loan in microfilm format and will in future provide them in digitised format via EThOS e-theses online service.
Where theses have already been digitised they are available as a (usually) free download, thus doing away with the need for an Inter-library loan request.
Searching involves a very quick registration process available at ethos.bl.uk.
If the thesis you require is not yet digitised, you can order it directly (but with demand for digitisation so high at the moment, you may have to wait for a couple of months).
If you need to consult a thesis urgently, please let us know and we will contact the relevant University and ask if they are willing/able to lend the hard copy to us. However, if that copy is in the backlog at the British Library awaiting digitisation, there is very little that we will be able to do.
Please see the EThOS FAQ's page for further information.
These databases allow you to search for material including articles, conference proceedings and books. Some, but not all, databases provide links to the full text of articles, where the university has a subscription to that title.