It was the conjunction alone of the French, that could give a decisive superiority to the Dutch. In order to facilitate this conjunction, de Ruyter, having repaired his fleet, posted himself at the mouth of the Thames. The English, under prince Rupert and Albemarle, were not long in coming to the attack. The numbers of each fleet amounted to about eighty sail; and the valour and experience of the commanders, 25th July. Victory of the English. as well as of the seamen, rendered the engagement fierce and obstinate. Sir Thomas Allen, who commanded the white squadron of the English, attacked the Dutch van, which he entirely routed; and he killed the three admirals who commanded it. Van Tromp engaged Sir Jeremy Smith; and during the heat of action, he was separated from de Ruyter and the main body, whether by accident or design was never certainly known. De Ruyter, with conduct and valour, maintained the combat against the main body of the English; and though overpowered by numbers, kept his station, till night ended the engagement. Next day, finding the Dutch fleet scattered and discouraged, his high spirit submitted to a retreat, which yet he conducted with such skill, as to render it equally honourable to himself as the greatest victory. Full of indignation however at yielding the superiority to the enemy, he frequently exclaimed, My God! what a wretch am I? among so many thousand bullets, is there not one to put an end to my miserable life?
One de Witte, his son-in-law, who stood near, exhorted him, since he sought death, to turn upon the English, and render his life a dear purchase to the victors. But de Ruyter esteemed it more worthy a brave man to persevere to the uttermost, and, as long as possible, to render service to his country. All that night and next day, the English pressed upon the rear of the Dutch; and it was chiefly by the redoubled efforts of de Ruyter, that the latter saved themselves in their harbours.