Susanville lies in a highly mountainous walled valley directly east of Lassen Butte, an extinct volcano 10,000 feet high. From its summit no less than forty extinct craters can be seen. Cinder Cone, which rises 600 feet above the level of the plateau, was in eruption in 1850. Two prospectors examined it and found Lake Saltafara, miles south of Cinder Cone, a center of volcanic forces. The lake was a mass of boiling water and mud and from it vast columns of flames shot up at intervals. The timber in the vicinity was on fire. Within the last few years there has seemed renewed activity in the internal fires and the present shocks point to the possibility of another great volcanic outburst which will find vent through some of the old craters. DESOLATED BY ERUPTIONS. FIFTEEN NEW CRATERS DESTROY MANY HOMES AND RUIN A WIDE AREA IN CHILI. PANAMA, April 26.--Regarding the eruptions in the Lunahuana district of Chili, the Lima _Opinion National_ has published the following letter dated March 30: “This beautiful valley has experienced a topographical change, and I may now call a desert that which was formerly a delightful spot. Fifteen craters have been continually at work since Sunday, the 22d, throwing out masses of mud, which, in its precipitate descent and with the monstrous strength of the current, is carrying ruin in all directions and sweeping houses before it, together with their inhabitants and the cattle, vineyards, farms, and irrigation works. All the roads north and south of here have been converted into ditches, through which water is continually pouring, and all communication between Canete and Chincha is interrupted, while the bridge across the river has been swept away. Hundreds of families have been left without homes and are camping out on the hillsides, the only clothes they have being those in which they escaped. They are preparing to cross the ravines, as the floods may sweep down upon them at any moment.” GLACIER ICE. Glacier ice is not like the solid blue ice on the surface of the water, but consists of granules joined together by an intricate network of capillary water, filled fissures. In exposed sections and upon the surface of the ice can be observed “veined” or “banded” structure veins of a denser blue color alternating with those of a lighter shade containing air bubbles. The cause of this peculiar structure has been the subject of much theorizing among investigators, but hitherto the greatest authorities consider that the explanation of the phenomenon is yet wanting.--_Goldthwaite’s Geographical Magazine._ THE LONGEST GLACIER IN THE TEMPERATE ZONE ASCENDED BY MR. CONWAY.