A collection of about 130 letters and 12 documents concerning the Toulouse Bibliotheq́ue Municipale Ms. 609 - Collection Doat register, 1245-1246. Included are letters from Merriam Sherwood Mantz to Prof. Austin P. Evans with carbons of his replies on her European research from 1933-1952 for his upcoming book on inquisitional registers, and some correspondence concerning the funding of this project by Columbia University.