HERMESDROFF
1876 
PUSTET 1884 (based on the Medicaea of 1614)
MONTPELLIER H 159 (transcription by F. E. Hansen)
MONT (2) down a step (also, compare the rest of this Offertory with Karl Ott's 1935 Offertoriale)
POTHIER 1883 (Liber Gradualis)
POTHIER 1895 (revision of the Liber Gradualis)
MOCQUEREAU 1903 Liber Usualis (as of yet, very few vertical OR horizontal episemas [excepting those on the climacus or ancus])
SCHWANN 1953 (edition of the Vaticana with editorial signs affecting the morae)
MOCQUEREAU 1921 Liber Usualis (edition of the Vaticana with Mocquereau's rhythmic signs)
DR. X. MATHIAS 1911 (edition of the Vaticana in modern notation)
MATHIAS (at a different place in the same publication, Mathias inexplicably changes his rhythmic conception)
NOVA ORGANI HARMONIA (1940's organ accompaniment based on the Vaticana with some morae marked)
SOLESMES 1980's (Vaticana organ accompaniment following Mocquereau's rhythmic markings)
JULIUS BAS (1920's organ accompaniment following Mocquereau's rhythmic markings)
DOMINICUS JOHNER 1925 ("A New School of Gregorian Chant")
PUSTET 1884 (based on the Medicaea of 1614)
MONTPELLIER H 159 (transcription by F. E. Hansen)
MONT (2) down a step (also, compare the rest of this Offertory with Karl Ott's 1935 Offertoriale)
POTHIER 1883 (Liber Gradualis)
POTHIER 1895 (revision of the Liber Gradualis)
MOCQUEREAU 1903 Liber Usualis (as of yet, very few vertical OR horizontal episemas [excepting those on the climacus or ancus])
SCHWANN 1953 (edition of the Vaticana with editorial signs affecting the morae)
MOCQUEREAU 1921 Liber Usualis (edition of the Vaticana with Mocquereau's rhythmic signs)
DR. X. MATHIAS 1911 (edition of the Vaticana in modern notation)
MATHIAS (at a different place in the same publication, Mathias inexplicably changes his rhythmic conception)
NOVA ORGANI HARMONIA (1940's organ accompaniment based on the Vaticana with some morae marked)
SOLESMES 1980's (Vaticana organ accompaniment following Mocquereau's rhythmic markings)
JULIUS BAS (1920's organ accompaniment following Mocquereau's rhythmic markings)
DOMINICUS JOHNER 1925 ("A New School of Gregorian Chant")
