Word: crusts
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...course opens with lectures by Dr. Shapley on the evolution of the stellar universe and then goes on to review the formation of the earth, handily brevified by Dr. Daley. Professor Ames next takes the chair to trace the botanical development of the earth's crust. This completes the first half year's work with smatterings of laboratory work on plants which despite its brief survey is still one of the best pleas for the course. Professors Woodcock and Wyman hold the rostrum for the second half year with their explanations of zoological transformations. The practical research accompanying these lectures...
Earthquake Zones. Why do earthquakes so often recur in the same places? Writes the erudite Montessus, whose world seismological map is speckled with nearly 160.000 quakes: "The earth's crust trembles almost only along two narrow bands which lie along great circles of the earth, the Mediterranean, or Alpino-Caucasian- Himalayan Circle; and the Circum-Pacific or Ando-Japanese-Malayan Circle." Fifty-three percent of all recorded earthquakes have occurred on the first of these, the Eurasian earthquake belt (see map, p. 23). Neatly tucked in the western end of this belt is much-troubled Naples...
Scientists divide earthquakes into two main groups, those of volcanic origin (generally local in character), and what they call tectonic earthquakes: slipping and faulting of the earth's crust either from subsurface erosion or (as many now hold) a result of the gravital pull of the sun and moon. Though Vesuvius had been in mild eruption for a fortnight before last week's quake, Italy's greatest seismologist, Professor Giovanni Agamennone, insisted that last week's cataclysm belonged to the latter class...
...There will always be earthquakes, just as it will always be necessary to adjust flywheels. The spinning of the earth is not unlike a flywheel's motion. Factors are constantly at work calling for readjustment. Pressure on different parts of the earth's crust varies. Even the moon may have some effect. I look upon the quake recorded yesterday as the first of a series...
...world received a reminder last week of what happens to men who, in the name of Science and Adventure, seek to scale the highest protrusions of the earth's crust. With trembling hand, Correspondent Frank S. Smythe of the London and New York Times pecked out the story on his typewriter in a tent 20,000 ft. up on Kanchenjunga, No. 3 peak (28,146 ft.) of the Himalaya range between India and Nepal, which is being essayed this season by a party under Geologist Günther 0. Dyhrenfurth of Zurich (TIME...