Peinture antique trouvée dans les Thermes de Tite, representant l'interieur des Bains selon l'usage des Anciens, from Les Plus Beaux Monuments de Rome Ancienne ou Recueil des plus beaux Morceaux de l'Antiquité Romaine qui existent encore
Not on view
Unnumbered plate showing the heating system (hypocaust) used in Roman thermae. In the 18th century this image was commonly reproduced and cited as originating on the frescoes of the Baths of Titus. A 1553 woodcut depicting this cross-section of a Roman bath (possibly the earliest version of this image) accompanied Giovanni Antonio Secchi's essay, "De Balneis compendium, ex Hippocrate et Galeno," in the volume "De Balneis omnia quæ extant apud græcos, latinos, et arabas," and made no such reference using the frescoes as a source. Barbault's design for this image includes extensive inscriptions identifying the elements depicted. The plate appears below plate 35, View of the remains of the Baths of Diocletian and across from page 60, the third of eight pages of text describing the Baths of Diocletian.