The number of copies of Wyclif's Latin works that derive from Bohemia and are mostly preserved now in Prague and Vienna is familiar ground. The evidence for the scrutiny of those works is less frequently mentioned: very extensive indexes were provided in Bohemia for many of the longer works, together with a catalogue of 115 items by Wyclif, listing titles, incipits and explicits and the number of books and chapters for each. Even more remarkable are the copies of the writings of some of Wyclif's English followers, though some of these followers were in correspondence with Bohemian fellows, some of the texts narrate entirely English affairs that would seem of little interest so far away. The paper surveys these manuscripts and notes the questions that they raise. and Anne Hudson.