 In addition to these works, we have 46 short disputations called Collationes dating from 1300–1305, a late work in natural theology called De primo principio, and Quaestiones Quodlibetales from Scotus’s days as regent master (either Advent 1306 or Lent 1307). Finally, there is a work called Theoremata. Though doubts have been raised about its authenticity, the recent critical edition accepts it as a genuine work of Scotus.