The internet is amazing

Just found the entire corpus of J.P. Migne's Patrologia Latine (and Pat. Gr) online at http://www.documentacatholicaomnia.eu

Two items of interest for those of you who venture here:

Exorcism ascribed to St. Ambrose of Milan:

http://www.documentacatholicaomnia.eu/04z/z_0339-0397__Ambrosius__Exorcismus__MLT.pdf.html

Anonymous exorcisms [and rites of excommunication]:

http://www.documentacatholicaomnia.eu/04z/z_0660-0660__Anonymus__Formulae_Veteres_Exorcismorum_Et_Excommunicationum__MLT.pdf.html

I wish I had more information about the last set.

Note that part of the first exorcism [Ambrose] appears in the Roman pre-Vatican II Rituale [http://www.ewtn.com/library/PRAYER/ROMAN2.TXT]

It may also appear in the newer Vatican-II Exorcism, but I have not seen that document.