The author of this book commenced his researches by a comparative study of the martyrologies, calendars, annals, and works dealing with the computation of time, and then set to work upon the historical and liturgical material which he had before him from the point of vantage thus obtained. The fortunate circumstance that the most of the works required for this branch of study are contained in Migne’s collection, renders the labour of comparison possible, and frequently brings remarkable parallels to light.
APPENDIX
I
(p. [16])
According to the existing Roman Calendar, feasts are classed as follows:—
Duplicia primæ classis. Nativitas Domini, Epiphania, Annunciatio, Pascha cum tribus antecedentibus et duobus sequentibus diebus, Ascensio Domini, Pentecoste cum duobus sequentibus diebus, festum Corporis Christi, festum SS. Cordis Jesu, festum S. Joseph sponsi B.M.V., Nativitas Joannis Bapt., festum SS. App. Petri et Pauli, Assumptio B.M.V., festum Immaculatæ Conceptionis B.M.V., festum Omnium Sanctorum, Dedicatio propriæ ecclesiæ, Patronus vel titulus ecclesiæ.
Duplicia secundæ classis. Circumcisio Domini, festum SS. Nominis Jesu, festum SS. Trinitatis, festum Pretiosissimi Sanguinis D. N. J. Chr., Inventio Crucis, Purificatio, Visitatio, Nativitas B.M.V., Sollemnitas S. Rosarii, Dedicatio Michælis Arch., festum Patrocinii S. Joseph sponsi B.M.V., Natales Apostolorum et festa Evangelistarum, festum S. Stephani, Protomartyris, SS. Innocentium, S. Laurentii, S. Annæ matris B.M.V., S. Joachim patris B.M.V.
Duplicia majora. Transfiguratio Domini, Exaltatio S. Crucis, festa VII. dolorum B.M.V., Commemoratio B.M.V. de monte Carmelo, festa Ad Nives, S. Nominis, de Mercede, et Præsentatio, B.M.V., Apparitio S. Michælis Arch., festum SS. Angelorum Custodum, Decollatio S. Joannis Bapt., Cathedra Petri utraque, S. Petri ad vincula, Conversio S. Pauli Ap., Commemoratio S. Pauli Ap., festum S. Joannis ante Portam Latinam, S. Barnabæ Ap., S. Benedicti Abb., S. Dominici Conf., S. Francisci Assis. Conf., festum Patronorum non principalium.