19 Spithead Green Exceedingly thick 19 Spithead Green Exceedingly thick 9 Fourteen 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 5 Off Tarifa Undecided Thicker than No. 5 7 Twelve miles Yellow-green Very thick from.