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one has ever descended into the interior of the earth and investigated the heart of a volcano but Jules Verne, and he only in his mind. What is needed now is exact information. The San Francisco catastrophe will teach many lessons, and among them the necessity for the close study of both volcanoes and earthquakes. There is no reason why earthquakes and other internal disturbances cannot be observed just as closely as the weather. In fact, it is entirely probable that the time will come when a seismological bureau will exist for the study of earthquakes, just as there is a Weather Bureau for observation of the weather, and it will be the business of its officials to prophesy and warn of approaching internal disturbances of the earth, just as the weather men announce the approach of bad weather. Government observation stations will be established, exact records will be kept, and in the course of time we shall learn exactly what earthquakes are and what are their causes. Among other lessons that the disaster has taught is that the much-maligned skyscraper is about the safest building there is. Its steel-cage structure, with steel rods binding the stone to its wall, has stood the test and has not been found wanting. Of all the mighty buildings in San Francisco those of the most modern structure alone survived. Their safety in the midst of collapsing buildings of mortar and brick argues well for like structures in other cities. [Illustration: Copyright by R. L. Forrest 1906. =CHINESE REFUGEES IN WASHINGTON SQUARE PARK.= It was estimated that as many as 10,000 Chinese were in this park at the time this photograph was taken.] [Illustration: =FLAT BUILDING SUNK INTO EARTH.= A view of the great fissures in earth caused by earthquake. One story of the flat building on corner sunk into the ground. The water main was broken, which cut off the water supply. No water to fight the fire or quench the thirst.] Mr. Otis Ashmore declared that the regions lying along the Pacific coast contain several of the moving strata which cause earthquakes. He said: "While much concerning the origin of earthquakes is still a matter of doubt in the minds of scientific men, it is now generally conceded that the real cause is the sudden slipping and readjustment of the strata of rocks with the crest of the earth. As the earth is slowly cooling a very slow contraction of the earth's crust is constantly going on, and
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