... heart ...
This is an error of date. Saturday, the day of their departure from London, was the 31st of July.—Ed.
Note:
The date which Wordsworth gave to this sonnet on its first publication in 1807, viz. September 3, 1803,—and which he retained in all subsequent editions of his works till 1836,—is inaccurate. He left London for Dover, on his way to Calais, on the 31st of July 1802. The sonnet was written that morning as he travelled towards Dover. The following record of the journey is preserved in his sister's Journal: