Inclining Experiment, by Hari V. Warrior
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Earthquakes and Other Earth Movements
John Milne (1850-1913) was a professor of mining and geology at the Imperial College of Engineering, Tokyo. While living in Japan, Milne became very interested in seismology, prompted by a strong seismic shock he experienced in Tokyo in 1880. Sixteen years later Milne and two colleagues completed work on the first seismograph capable of recording major earthquakes. This book, originally published in London in 1886, explains why earthquakes happen and what effects they have on land and in the oceans. As Milne points out, Japan provided him with 'the opportunity of recording an earthquake every week'. Starting with an introduction examining the relationship of seismology to the arts and sciences, the book includes chapters on seismometry, earthquake motion, the causes of earthquakes, and their relation to volcanic activity, providing a thorough account of the state of knowledge about these phenomena towards the end of the nineteenth century.
The Coming Ice Age
On Nov. 12, 1891, Professor Geikie made his presidential address before the Edinburgh Geological Society, the subject being "Supposed Causes of the Glacial Period." Many of his views advanced in this lecture were so much in accordance with my own that I am induced to repeat them. He said that the glacial period was a general phenomenon due to some widely acting cause, and that where we now have the greatest rain-fall the greatest snow-fall took place, and that the Pleistocene period was characterized by great oscillations of climate, extremely cold and very genial conditions alternating. He also said that in glacial and post-glacial times changes in the relative level of the land and sea had taken place, and any suggested explanation which did not fully account for these various climatic and geographical conditions could not be satisfactory. And, while examining the earth-movement hypothesis, he pointed out that in the first place there was not the least evidence of great continental elevations and depressions in the northern hemisphere, such as the hypothesis postulated. Next he showed that, even if the diserrated earth-movements were admitted, they would not account for the phenomena. Such changes, no doubt, would profoundly affect the maritime regions of North America and Europe; but they would not bring about the conditions that obtained at the climax of the ice age. Another objection to the earth-movement hypothesis was this: it did not account for interglacial conditions. The advocates of that hypothesis imagined that these conditions would supervene when the highly elevated northern regions were depressed to their present level. But these were the conditions that obtained at the present time; and yet in spite of them the climate was neither so equable nor so genial as that which obtained in interglacial times and during the mild stage of the necessary post-glacial period.
The Crest of the Continent: A Record of a Summer’s Ramble in the Rocky Mountains and Beyond
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface.We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.