¹ In case Mr. Grundy should imagine that this dotted line marks a road rather than an aqueduct, I will ask him to notice, (1) that the line begins at the spring and ends at the village; (2) that roads on the French map are regularly represented by continuous, not by dotted, lines; and (3) that on the same section of the map a similar dotted line in the neighbourhood of Eleusis is identified as an aqueduct by the legend Aqueduc.