On reel 4 (list 56) with Recherches sur l'origine des découvertes attribubées aux modernes / Dutens.
Microfilm. St. Louis, Mo. : Pius XII Memorial Library, Saint Louis University, 1965. 1 microfilm reel ; 35 mm. (Manuscripta, microfilms of rare and out-of-print books ; list 56, no. 14)