He managed to create an extraordinarily rich collection of Danish and Norse literature, which he, together with what else he had collected, especially by foreign legal literature, gave the university library in which these subjects were slightly underrepresented; also a quantity of manuscripts found in the collection over which he in 1686 published a list bearing his curriculum vitae and portraits.
Det lykkedes ham således at tilvejebringe en overordentlig rig samling af dansk-nordisk litteratur, hvilken han tillige med, hvad han ellers havde samlet, især af fremmed juridisk litteratur, forærede universitetsbiblioteket, hvori disse fag var svagt repræsenterede; også en mængde håndskrifter fandtes i samlingen, over hvilken han 1686 udgav en fortegnelse, forsynet med hans levnedsbeskrivelse og portrætter.