Non-existence of the Dome in our old English architecture--Highly developed forms in France, Germany, and Italy, contemporary with our great Mediæval edifices--Suggestions for its introduction into our revived and redeveloped Neo-mediæval style--So-called Tomb of Agamemnon at Mycenæ--The Pantheon--Temple of Minerva Medica--Torre dei Schiavi--Temples of Vesta at Rome and Tivoli--Temple of Jupiter in Diocletian’s Palace, Spalatro--Tomb of St. Constantia--Baptistery at Nocera--Baptistery at Ravenna--Important domical development--“Pendentive Domes”--Early specimens--Pendentive domes the special characteristic of the Byzantine style--How this originated--Further domical developments--Cathedral at Florence--Churches of SS. Sergius and Bacchus, the Apostles, and St. Sophia, Constantinople Page 228 LECTURE XVII. The Dome--_continued_. St. Irene, Constantinople--Church of San Vitale, the type, three centuries later, of Charlemagne’s Church at Aix-la-Chapelle--Two influences at work leading to the introduction and adoption of the dome into Italy--From thence into the south-west of France--Baptisteries at Florence and Parma--Cathedral at Sienna--St. Mark’s, Venice--Santa Fosca near Venice--Domes having _pointed_ arches for their support--St. Front and La Cité, Perigueux--Angoulême--Fontevrault--Auvergne--Ainay near Lyons--Pendentives in many French churches give place to corbels--The _modern_ type of dome--Cathedral at Florence--St. Peter’s, Rome, and St. Paul’s, London Page 255 LECTURE XVIII. Architectural Art in reference to the Past, the Present, and the Future. Sculpture and Painting arise directly from artistic aspirations, Architecture from practical necessities beautified--Architecture, as distinguished from mere building, is the _decoration of construction_--The History of Architecture has never been viewed as an object of study previous to our own day--Phases of the study--Dangers to be avoided--History of Architecture is the history of civilisation--Western distinct from Eastern civilisation, and to be studied separately--Source of our branch--Its development and progressive stages--The Gothic Renaissance--Advice to the architectural student Page 290 LIST OF ILLUSTRATIONS CONTAINED IN VOL. II.