betrays some secret disposition to extenuate the populousness of ancient times.] [Footnote 67: Olympiodor. ap. Phot. p. 197. See Fabricius, Bibl. Graec. tom. ix. p. 400.] [Footnote 68: In ea autem majestate urbis, et civium infinita frequentia, innumerabiles habitationes opus fuit explicare. Ergo cum recipero non posset area plana tantam multitudinem in urbe, ad auxilium altitudinis aedificiorum res ipsa coegit devenire. Vitruv. ii. 8. This passage, which I owe to Vossius, is clear, strong, and comprehensive.] [Footnote 69: The successive testimonies of Pliny, Aristides, Claudian, Rutilius, &c., prove the insufficiency of these restrictive edicts. See Lipsius, de Magnitud. Romana, l. iii. c. 4. Tabulata tibi jam tertia fumant; Tu nescis; nam si gradibus trepidatur ab imis Ultimus ardebit, quem tegula sola tuetur A pluvia. ---Juvenal. Satir. iii. 199] [Footnote 70: Read the whole third satire, but particularly 166, 223, &c. The description of a crowded insula, or lodging-house, in Petronius, (c. 95, 97,) perfectly tallies with the complaints of Juvenal; and we learn from legal authority, that, in the time of Augustus, (Heineccius, Hist. Juris. Roman. c. iv. p. 181,) the ordinary rent of the several coenacula, or apartments of an insula, annually produced forty thousand sesterces, between three and four hundred pounds sterling, (Pandect. l. xix. tit. ii. No. 30,) a sum which proves at once the large extent, and high value, of those common buildings.] [Footnote 71: This sum total is composed of 1780 domus, or great houses of 46,602 insuloe, or plebeian habitations, (see Nardini, Roma Antica,