Fig 1- Plan of the Castalian fountain Fig 2- Elevation The upright grooves in the wall do not admit an easy explanation - Stuart James & Revett Nicholas - 1816, 1794

James stuart & nicholas revett. The antiquities of athens measured and delineated by james stuart f. R. S. And f. S. A. And nicholas revett painters and αrchitects, vol. Iii (ed. Willey reveley), london, john nichols, 1794. Date: 1794.