PL 54 · cols. 1505–1514
Indices in hunc tomum I operum S. Leonis: Ordo novus sermonum, Ordo novus epistolarum, Index alphabeticus epistolarum
The Ballerini edition of Leo the Great (PL 54): the tables of this volume, the new order of Leo's sermons and of his letters compared with the older editions, with their columns, and the alphabetical index of the letters by addressee, in Latin.
Migne Reading Room