. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. B<)(4()SL()K VOLCANOES. 369 lower than the middle peak, uiul the depression between the two had become a long, deepl}^ excavated saddle (tig-. 3). The illustrations already given show the island from the side, and give a false impression of its stability and form. When -een "end on," it tippears as a narrow-crested ridge. It was described by Dall in 1878 as "'a sharp, ser- rated ridge, about 850 feet in height, very nar- r
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. B<)(4()SL()K VOLCANOES. 369 lower than the middle peak, uiul the depression between the two had become a long, deepl}^ excavated saddle (tig-. 3). The illustrations already given show the island from the side, and give a false impression of its stability and form. When -een "end on," it tippears as a narrow-crested ridge. It was described by Dall in 1878 as "'a sharp, ser- rated ridge, about 850 feet in height, very nar- row, the sides meeting above in a very acute .y .^^ , angle, where they are broken into a number of ^_,^<^/^/' /y^\ inaccessible pinnacles" (fig. 4). This extreme kig. view of Bog^.^slof hj. i. • 11 u J. J from the southeast in 1873. as, or course, materially hastened After Daii. the disintegration of the upper part of the volcano. Some idea of the loss between 1873 and 1890 may be had by comparing Dall's sketch (fig. -l) with a photograph taken by the Alhatros6 in 1890 (fig. 5). When the Harriman expedition visited Bogoslof on the evening of Julv 8. 1899, fog rested so heavilv on the summit that the form of the 4 Fig. B.—Old and New Bogoslof from the sontheast in 1890. From photo by U. S. Fish Commission. two highest peaks could not be completely made out, but the lowness of the ridge as a whole, the small size of the northwest peak, and the depth of the notch separating it from the rest of the mass, told too plainly of the rapidit}' with which the destruction is going on and foreshadowed the eventual downfall of the peaks. NEW BOGOSLOF OR ; The towering cliffs of Old Bogoslof no longer battle alone with the angry storms of Bering Sea, for close at hand a new island has risen. \\j& birth was not witnessed by human eye; no earthquake shock marked its advent, and the date of its upheaval ma}" never be known. It was first seen b}' Captain
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