I noticed that the waves, after churning themselves into foam, assumed emerald tints, and caught a momentary gleam of sapphire, melting into amethyst, during the rapid changes from the bluish-green of solid water to its greatest state of disintegration. The same change of color has been observed in the Hebrides, and elsewhere. The place that held for me more of fascination and sublimity than others was the bluff that looks out upon the vast ocean. I was often there. The swell of the Atlantic is not like the long regular roll of the Pacific, but it beats with steady rhythm. The grandest effects are produced after a heavy north-east blow, when the waves assume the larger and more flattened form known as the ground-swell. I was fortunate enough to stand on the cliff after three or four days of "easterly weather" had produced this effect. Such billows as poured with solid impact on the rocks, leaping twenty feet in the air, or heaped themselves in fountains of boiling foam around its base, give a competent idea of resistless power! The shock and recoil seemed to shake the foundations of the island. Upon a shelf or platform of this cliff a young lady-teacher lost her life in September, 1848. Since then the rock on which she was seated has been called "Miss Underhill's Chair." Other accidents have occurred on the same spot, insufficient, it would seem, to prevent the foolhardy from risking their lives for a seat in this fatal chair. There are circumstances that cast a melancholy interest around the fate of Miss Underhill. In early life she had been betrothed, and the banns, as was then the custom, had been published in the village church. Her father, a stern old Quaker, opposed the match, threatening to tear down the marriage intention rather than see his daughter wed with one of another sect. Whether from this or other cause, the suitor ceased his attentions, and not long after took another wife in the same village. The disappointment was believed to have made a deep impression on a girl of Miss Underhill's strength of character. She was a Methodist, deeply imbued with the religious zeal of that denomination. Hearing from one who had been at the Isles of Shoals that the people were in as great need of a missionary as those of Burmah or of the Gold Coast, it became an affair of conscience with her to go there and teach. She came to the islands, and applied herself with ardor to the work before her, a labor from which any but an enthusiast would have recoiled. It is asserted that no spot of American soil contained so debased a community as this.