| List of Illustrations | ||
| To Face Page | ||
| Porta Maggiore | Frontispiece | |
| Map of Aqueducts | 341 | |
| Ruins of Aqua Claudia | 355 | |
| The Seven Aqueducts at the Porta Maggiore | 361 | |
| Ad Spem Veterem | 363 | |
| Ruins of Aqua Claudia Near the Appian Way | 407 | |
| Map of Rome and Vicinity | At end | |
| Tables Showing the Water Supply of the City of Rome | At end
| |
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