The doctrine of the Incarnation was wellspring and catalyst for theories of images verbal, material, and spiritual. Section I, “Representing the Mystery of the Incarnation”, takes up questions about the representability of the mystery. Section II, “Imago Dei and the Incarnate Word”, investigates how Christ’s status as the image of God was seen to license images material and spiritual. Section III, “Literary Figurations of the Incarnation”, considers the verbal production of images contemplating the divine and human nature of Christ. Section IV, “Tranformative Analogies of Matter and Spirit”, delves into ways that material properties and processes, in their effects on the beholder, were analogized to Christ’s hypostasis. Section V, “Visualizing the Flesh of Christ”, considers the relation between the Incarnation and the Passion.

The differences between Old-Roman, Ambrosian, Aquileian, Gallican, and Hispanic chant, and their interconnections with each other and the Gregorian chant occupied Michel Huglo in his early career, although he returned to these questions in the 1980s and 1990s. The present volume, the second in the set of four to be published in the Variorum series, brings all this work together. Huglo's 1954 article, the first to describe the sources for Old Roman chant, recognized as distinct from Gregorian chant, is of primary significance for the historiography of Western plainchant, because it opened the debate on the relationship between Old Roman and Gregorian chant. The final section presents articles on the Latin version of the Akathistos hymn and on Byzantine chants translated into Latin that became part of the Western plainchant repertory. Les différences entre les répertoires Vieux-romain, Ambrosien, Aquiléien, Gallican et Hispanique, leurs influences réciproques et leurs relations avec le chant grégorien ont occupé Michel Huglo au début de sa carrière: il revint sur ces questions dans les années 1980 et 1990. Ce volume, le deuxième d'une série de quatre dans la collection Variorum, réunit toutes ces études. L'article de 1954 de Michel Huglo sur les sources du chant Vieux-romain, considéré comme distinct du grégorien, est de première importance pour l'historiographie du plain-chant occidental, car il a ouvert les débats sur le rapport entre Vieux-romain et grégorien. Les articles sur la version latine de l'Hymne Acathiste et sur les pièces de chant byzantin traduites en latin dans les répertoires occidentaux du plain-chant achèvent ce volume.