XV.] MEASUREMENTS OF HEIGHT. 337 the distance \ hail, 0 King, and grant -us thy blessing." For all this,' Plutarch continues, 'the geometricians maintain that no mountain is of greater height, nor any part of the sea of greater depth, than 10 stadia; yet Xenagoras does not seem to have made his computation carelessly, but strictly with the help of instruments1.' About the height of Cyllene also there were other, and widely divergent estimates, besides that already given. Apol- lodorus reckoned it at 80 feet less than nine stadia2 (5,320 feet). And Strabo says that by some it was computed by perpendicular measurement as 20 stadia (12,000 feet), by others as about 15 stadia8 (9,000 feet). By the latter of these two numbers the calculation of Dicaearchus was probably meant. Strabo also records the elevation of the Acrocorinth, which he says was estimated as three stadia and a half (2,100 feet) in vertical height*. This is approximately true, for the real measurement is 1,887 English feet. 1 Plut. Aemil. PaulL c. 15; 'E?Ta00a roO 'OXrf/iTrov ro ityos d^arefm v\£w 4) S&a ffradlovr ffrmalveTcu 8t em7pd/i/iart roO /Aer/nfacu'Tos oflrais* OflXifyiTfou /copu0?Js £TH llvdlov 'Air6\Xpos lepov ti\l/os 2xct (wpto ity KdOerov 5' jikv deicdSa ffraSLuv play, aiJrdp fuv vlbs td-fiKa.ro fitrpa K€\e66ov j) 5', &va£, %a?/>e Kal &T0X& Katrot \t~yovo-Lv ol yewfJLerpLKol /jtfre 6pov$ fyos fi^re fiddos ^aXdtrcr^s $Tepp &KO, aradlovs. '0 /J^VTOL Eevaybpas 01) traptpyus, dXX& jj£&68tp Ktd d(* dpydvuv e£X??0&cu Soxel r^v fj&rpijffLv. 3 Steph. Byz. s.v. Ki/XX^??: Eustathius in Horn. Od. p. 1951, ed. Rom. 1542. 8 Strabo, 8. 8. I ; ^ywrov 5' flpos h aiVjJ [rj ILeXovovr/ifftp] KvXXi}^' r^y yovv xdOerov ol fj£v etieoffi ffraStuv (f>a