“He agreed with contractors for building a theatre near the Temple of Apollo, and for embellishing the Temple of Jupiter in the Capitol, and the columns around it; he also removed from those columns the statues that stood incommodiously before them, and took down the shields and military ensigns of all sorts which were hung upon them. Marcus Fulvius made contracts for more numerous and more useful works—a haven on the Tiber, and piers for a bridge across it, on which piers Publius Scipio Africanus and Lucius Mummius, censors, many years after, caused the arches to be erected; a court of justice behind the new bankers’ houses, and a fish-market, surrounded with shops for private sales; also a forum and porticus, on the outside of the Porta Trigemina; another porticus behind the dockyard, and one at the _Temple of_ Hercules; also a temple of Apollo Medicus, behind that _of Spes_, near the bank of the Tiber[63].” It will be observed that all these passages apply to the well-known Temple of Spes near the bank of the Tiber, of which there are considerable remains now in the church of S. Nicolas in Carcere, and do not apply to a Temple of Spes at the Porta Maggiore. The word _specus_ is used by Vitruvius in the sense of a covered water-course:— “But if there should be mounds in the middle between the walls and the fountain-head, it must be so contrived that the water-channel (_specus_) be dug under the earth, and poised on the top[64].” And at a later period by Hirtius:— “Alexandria is almost wholly undermined with water-courses, and has a _specus_ extending to the Nile, by which water is conveyed into private houses[65].” III. THE AQUA MARCIA (B.C. 145). “127 years afterwards, that is, from the building of Rome 608 years, when Servius Sulpicius Galba and Aurelius Cotta were consuls, as the aqueducts or conduits (_ductus_) of the Appian and Anio were much decayed by age, (and also intercepted fraudulently for private purposes,) the business of repairing and reclaiming the said aqueducts was entrusted by the senate to Marcius, who was then acting as Prætor. And because the increase of the population of the city seemed to demand a more ample supply of water, instructions were given to him by the senate that he should carefully examine how far there were other streams which he might be able to bring into the city[66]. “He therefore restored the two old conduits, and introduced a third, _which he caused to be erected with ‘squared stones,’ and larger aqueducts, and carried through them the water which he had obtained for the public service_[67]. Hence it received the name of the ‘Marcian’ from himself, as the author of it.