Note 154 — SPAIN.* (continued 2)
Reading edition
Area of the basin of the Ebro, 25,100 square miles; discharge during floods, 175,000 cubic feet, average, 7,100 cubic feet; during summer, 1,750 cubic feet; annual rainfall, 18 inches; surface drainage, 1·4 inches; proportion between the two, 13 : 1.