Bayet, Charles M. A. L.
Charles Marie Adolphe Louis Bayet
His book, L'art byzantin (1883) was one of the early required texts to be listed in the course catalog for the art history classes of Princeton University. Notes about Bayet's opinions on Giotto appear in Richard Offner's annotated catalog of the 1937 Mostra Giottesca.
Ladis, Andrew. "The Unmaking of a Connoisseur." in, Offner, Richard. A Discerning Eye: Essays on Early Italian Painting. University Park, PA: Pennsylvania State University Press, 1998, p,19, note 1 (Offner wrote as "Beyet");