M. Scherer, _op. cit._ in Ch. 3, 49–62 (Palatine); 75–76 (Arch of Titus), 80–89 (Coliseum), 101–102 (Forum “of Nerva”) J. M. C. Toynbee, _The Flavian Reliefs from the Palazzo della Cancelleria in Rome_ (Oxford, 1957) CHAPTER 10: _Trajan: Port, Forum, Market, Column_ C. Becatti, _Scavi di Ostia_ 2 (Rome, 1954) (Mithraea) G. Boni, “Roma--Esplorazione del Forum Ulpium,” _Not. Scav._ (1907), 361–427 J. Bradford, _Ancient Landscapes_, 248–256 (Claudius’ and Trajan’s harbors) G. Calza, _Scavi di Ostia_, 1 (Rome, 1953) ---- and G. Becatti, _Ostia_^4 (MPI _Guides_, Rome, 1957) ----, _La necropoli del Porto di Roma nell’ Isola Sacra_ (Rome, 1940) J. Carcopino, _Daily Life in Ancient Rome_ (New Haven, 1940), 173–184 (businessmen and manual laborers) P. Ducati, _L’arte classica_^3 (Turin, 1948), 619–628 (Trajan’s Forum and Column) K. Lehmann-Hartleben, “Die antiken Hafenanlagen des Mittelmeeres,” _Klio_, Beiheft 14 (1923), 182–198 (Claudius’ and Trajan’s harbors) G. Lugli, _Roma antica_ (Rome, 1946), 278–307 (Trajan’s Forum and Market) ---- and C. Filibeck, _Il Porto di Roma imperiale e l’agro Portuense_ (Rome, 1935) R. Meiggs, art. “Ostia,” in _Oxf. Class. Dict._ (Oxford, 1949) P. Romanelli, _La colonna traiana: relievi fotografici eseguiti in occasione dei lavori di protezione antiaerea_ (Rome, 1942) E. D. Thatcher, “The Open Rooms of the Terme del Foro at Ostia,” _Mem. Am. Acad. in Rome_ 24 (1956), 167–264 CHAPTER 11: _An Emperor-Architect: Hadrian_ S. Aurigemma, _Villa adriana_^3 (Tivoli, 1955) H. Bloch, “I bolli laterizi e la storia edilizia romana,” _Bull. Comm._ 65 (1937), 115–187 E. Clark, _Rome and a Villa_ (New York, 1952), 141–194 H. Kähler, _Hadrian und seine Villa bei Tivoli_ (Berlin, 1950) G. Lugli, _I monumenti antichi_, 3 (Roma, 1938), 123–150 (Pantheon), 693–708 (Hadrian’s mausoleum) ----, _Roma antica_ (Rome, 1946), 234–240 (Temple of Venus and Rome) D. S. Robertson, _A Handbook of Greek and Roman Architecture_^2 (Cambridge, 1954), 246–251 (Pantheon), 252–254, 316 (Piazza d’Oro) A. W. Van Buren, “Recent Finds at Hadrian’s Tiburtine Villa,” _Am. Journ. of Archaeology_ 59 (1955), 215–217 (Canopus) M. Yourcenar, _Mémoires d’Hadrien_ (Paris, 1951; Engl. trans., New York, 1954) L. Ziehen, art. “Pantheion,” in _RE_ 18 (1949), cols. 729–741 CHAPTER 12: _Roman Engineering_ _American Architect_ 98 (Oct. 5, 1910), 113–118 (Pennsylvania Station) W. J. Anderson, R. P. Spiers, and T. Ashby, _The Architecture of Ancient Rome_ (London, 1927), 99–113 (Baths) T. Ashby, _Aqueducts of Ancient Rome_ (Oxford, 1935) Van Wyck Brooks, _The Dream of Arcadia_ (New York, 1958), 239 ff.