A most interesting volcanic phenomenon of recent record is afforded by the study of that small Bogaslov islet which now stands hot and smoking twenty miles north of Oomnak, and which, two years ago, raised a great commotion by firing up anew. In the autumn of 1796 the natives of Oomnak and Oonalashka were startled by a series of loud reports like parks of artillery, followed by tremblings of the earth upon which they stood. Then a dense dark cloud, full of gas and ashes, came down upon them from Bering Sea, swept by a northerly wind, and it hung over their astonished heads for a week or ten days, accompanied by earthquakes and subterranean thunder; then when an interval of clearing occurred by a change of winds, they saw distinctly to the northward a bright light burning over the sea. The boldest launched their bidarkas, and, after a close inspection, saw that a small island had been elevated about one hundred feet above the level of the surrounding waters; that it had been forced up from some fissure of the bottom to the sea, and was still rising, while liquid streams of lava and scoriæ made it impossible for them to land. This plutonic action did not cease here until 1825, when it left above the green waters of Bering Sea an isolated oval peak with a serrated crest, almost inaccessible, some two hundred and eighty feet high, and two or three miles in circumference. The Russians landed here then for the first time, and the rocks were so hot that they passed but a few moments ashore. It has, however, cooled off enough now to be occupied by large herds of sea-lions, and is resorted to by flocks of sea-fowl. In this fashion of the making of Bogaslov was our vast chain of the Aleutian archipelago cast up from that line of least resistance in the earth’s crust which is now marked by the position of these islands, as they alternately face the billows of the immense wastes of the Pacific, and those storm-tossed waves of the shoal sea of Bering. FOOTNOTES: [69] Bishop Veniaminov, who witnessed one of these eruptions in 1825, describes the occurrence: “On the 10th March, 1825, after a prolonged subterranean noise resembling a heavy cannonade, that was plainly heard on the islands of Oonalashka, Akoon, and the southern end of the Alaska Peninsula, a low ridge at the northwestern end of Oonimak opened in five places with violent emissions of flames and great masses of black ashes, covering the country for miles around; the ice and snow on the mountain tops melted and descended in a terrific torrent five to ten miles in width, on the eastern side of the island. The Shishaldin crater, which up to that time had also emitted flames, continued to smoke only.”