Pure 5 Off Tarifa Undecided Thicker than No. 4 6 Beyond Tarifa Cobalt-blue Much purer than No. 5 7 Twelve miles Yellow-green Very thick from Cadiz 10 Fourteen miles Yellow-green Very thick from Cadiz 11 Between Capes Deep Indigo Very little matter, St. Mary and Vincent very pure 16 Bay of Biscay Indigo Very little matter, very pure 12 Off the Burlings. Strong green.