On the Sabbath after my arrival in London, as I was walking down Bridge Street on my way to Surrey Chapel, I saw a party of young people whose gaiety of manner ill accorded with the sanctity of the day, and just as I was passing them I heard one say, "Indeed I think we shall do wrong; my conscience condemns me; I must return." "There can be no harm," replied another, "in taking an excursion on the water, especially as we intend to go to chapel in the evening." "I must return," rejoined a female voice; "my conscience condemns me. What will father say if he hears of it?" By this time they had reached the bridge, and the foremost of the party was busily engaged with a waterman, while the rest stood in close debate for some minutes, when they all moved forward towards the water. I watched the party as they went down the stairs to the river. Two of the gentlemen stepped into the boat, two more stood at the water's edge, and the females were handed in one after another; but I could perceive great reluctance on the part of the one who had previously objected, till at length she yielded to the importunities of her companions, and the boat was pushed off. It was a fine morning, though rather cold. Many, like myself, were gazing on them, when a naval officer called to them through the balustrades and said, "A pleasant voyage to you." One of the gentlemen arose to return the compliment, but, from some cause which I could not perceive, he missed his footing and fell into the water. This disaster threw the whole party into the utmost consternation; and each one, instead of retaining his seat, rushed to the side of the boat over which their companion had fallen, by which the boat was upset, and all were instantaneously plunged into the river. The scene which followed, when the spectators beheld this calamity, exceeded any I had ever witnessed. Some females screamed, the passers-by crowded together to the parapet of the bridge, and everything was bustle and excitement; boats immediately put off; and in a few minutes I had the satisfaction of seeing the watermen rescue one, and another, and another from a premature grave. Having picked up every one they could find, the different boats were rowed to shore, where some medical gentlemen were in waiting. But when the party met together, no language can describe the horror depicted on every countenance when they found that two were still missing. "Where's my sister?" said the voice which had said, only a few minutes before, "There can be no harm in taking an excursion on the water, especially as we intend to go to chapel in the evening." "Where's Charles?" said a female, who had appeared the most gay and sprightly when I first saw them. At length two boats, which had gone a considerable distance up the river, were seen returning; and on being asked if they had picked up any one, they replied, "Yes; two." This reply electrified the whole party, and some wept for joy. [Illustration: SABBATH PLEASURE SEEKERS.