Decretals of Pope Gregory IX
From eds. Emil Ludwig Richter & Emil Friedberg, Corpus Iuris
Canonici, Pars Secunda: Decretalium Collectiones,
Back to Albertano.
Liber secundus (331k *.zip file) here.
Liber tertius (304k *.zip file) here.
Liber quartus (92k *.zip file) here.
Liber quintus (291k *.zip file) here.
At about the same time (summer 2004) that I placed the last portion
of text at this site, I received an announcement of an academic site
based in Italy that presents these texts from the same edition in a
searchable form, and which also permits the viewing of PDF images of
the original printed pages. You can reach this site by clicking here.