At Jerusalem village the inhabitants were collecting in haste, before a thunder-shower now approaching, the Irish moss which they had spread to dry. The shower passed on one side, and gave me a few drops only, which did not cool the air. I merely felt a puff upon my cheek, though, within sight, a vessel was capsized in the bay, and several others dragged their anchors, and were near going ashore. The sea-bathing at Cohasset Rocks was perfect. The water was purer and more transparent than any I had ever seen. There was not a particle of mud or slime about it. The bottom being sandy, I could see the sea-perch swimming about. The smooth and fantastically worn rocks, and the perfectly clean and tress-like rock-weeds falling over you, and attached so firmly to the rocks that you could pull yourself up by them, greatly enhanced the luxury of the bath. The stripe of barnacles just above the weeds reminded me of some vegetable growth,—the buds, and petals, and seed-vessels of flowers. They lay along the seams of the rock like buttons on a waistcoat. It was one of the hottest days in the year, yet I found the water so icy cold that I could swim but a stroke or two, and thought that, in case of shipwreck, there would be more danger of being chilled to death than simply drowned. One immersion was enough to make you forget the dog-days utterly. Though you were sweltering before, it will take you half an hour now to remember that it was ever warm. There were the tawny rocks, like lions couchant, defying the ocean, whose waves incessantly dashed against and scoured them with vast quantities of gravel. The water held in their little hollows, on the receding of the tide, was so crystalline that I could not believe it salt, but wished to drink it; and higher up were basins of fresh water left by the rain,—all which, being also of different depths and temperature, were convenient for different kinds of baths. Also, the larger hollows in the smoothed rocks formed the most convenient of seats and dressing-rooms. In these respects it was the most perfect seashore that I had seen. I saw in Cohasset, separated from the sea only by a narrow beach, a handsome but shallow lake of some four hundred acres, which, I was told, the sea had tossed over the beach in a great storm in the spring, and, after the alewives had passed into it, it had stopped up its outlet, and now the alewives were dying: by thousands, and the inhabitants were apprehending a pestilence as the water evaporated. It had live rocky islets in it.