(Psst! You can find part 1 here.)
So the British Library is in the process of phasing out one database of digitized manuscripts, Digitized Manuscripts site (DM), in favor of another, Catalogue of Illuminated Manuscripts (CIM). This post is going to focus on searching the DM.
Before we get too far in here, remember that you’re not going to find everything in the DM. The only things that can be found here reliably are the Cotton manuscripts – that is, any manuscript with the word “Cotton” in the shelfmark. So, the Lindisfarne Gospels, AKA Cotton MS Nero D.IV, are going to be in the DM. Also note that the DM is being tinkered with because it is going away, so don’t be surprised if things don’t load correctly or you get an error.