It was on Saturday, July 20th, that Lord Effingham came in sight of his formidable adversaries. The Armada was drawn up in form of a crescent, which from horn to horn measured some seven miles. There was a south-west wind; and before it the vast vessels sailed slowly on. The English let them pass by; and then, following in the rear, commenced an attack on them. A running fight now took place, in which some of the best ships of the Spaniards were captured; many more received heavy damage; while the English vessels, which took care not to close with their huge antagonists, but availed themselves of their superior celerity in tacking and manoeuvring, suffered little comparative loss. Each day added not only to the spirit, but to the number of Effingham's force. Raleigh, Oxford, Cumberland, and Sheffield joined him; and "the gentlemen of England hired ships from all parts at their own charge, and with one accord came flocking thither as to a set field, where glory was to be attained, and faithful service performed unto their prince and their country." The Spanish admiral also showed great judgment and firmness in following the line of conduct that had been traced out for him; and on July 27th he brought his fleet unbroken, though sorely distressed, to anchor in Calais roads. But the King of Spain had calculated ill the number and activity of the English and Dutch fleets; as the old historian expresses it, "It seemeth that the Duke of Parma and the Spaniards grounded upon a vain and presumptuous expectation, that all the ships of England and of the Low Countreys would at the first sight of the Spanish and Dunkerk Navie have betaken themselves to flight, yeelding them sea-room, and endeavouring only to defend themselves, their havens, and sea coasts from invasion. Wherefore their intent and purpose was, that the Duke of Parma, in his small and flat-bottomed ships should, as it were, under the shadow and wings of the Spanish fleet, convey over all his troupes, armour, and warlike provisions, and with their forces so united should invade England; or, while the English fleet were busied in fight against the Spanish, should enter upon any part of the coast which he thought to be most convenient. Which invasion (as the captives afterwards confessed) the Duke of Parma thought first to have attempted by the river of Thames; upon the banks whereof, having at the first arrivall landed twenty or thirty thousand of his principall souldiers, he supposed that he might easily have wonne the citie of London; both because his small shippes should have followed and assisted his land forces, and also for that the citie itselfe was but meanely fortified and easie to ouercome, by reason of the citizens' delicacie and discontinuance from the warres, who, with continuall and constant labour, might be vanquished, if they yielded not at the first assault."