Word: leete
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Completion of construction work on the new Harvard seismology vault, excavation of which was begun last May, was announced yesterday by L. D. Leet, instructor in Seismology. New instruments of the latest type for the recording of earthquake shocks have been ordered and will be installed as soon as they are manufactured, with actual recording beginning about May 10. The completed vault will be one of the most perfect seismological stations in existence, according to Leet...
Explaining the difference between the earthquake which recently shook New York State and the one in Nicaragua on Friday, April 10, which caused a great deal of damage. Dr. L. Don Leet, Seismologist-in-charge of the Harvard Seismograph Station, said "The earthquakes which occur in New England and vicinity are surficial, seldom extending to a depth of more than 200 feet, whereas the earthquakes which are typical of Central America, the Western coast of the United States, and Japan, are deep-seated, continuing from the surface to a depth of 25 miles...
...severest storms in the history of the Harvard seismograph station occurred last, Wednesday, it was announced yesterday by L. D. Leet, seismologist in charge. It started early in the morning and continued through the night. These rythmatic earth-vibrations have puzzled seismologists for many years. In the last storm the earth's crust in this vicinity was agitated by ripples causing vibrations as great as one thousandth of an inch, or five times as great as those recorded in a similar storm last December...
This summer Dr. Leet will make extensive investigation as to the nature of the foundations of the earth. With two portable seismographs recently acquired by the station, he will make use of the tremors caused by explosives to measure the degrees of vibration registered by granite under varying degrees of pressure...
...instrument used will be a commercial one developed for determining the existence of oil deposits, and one more highly specialized, unique in the history of the science, perfected by H. G. Taylor, of Washington. Dr. Leet will conduct a course in the use of these instruments, which will begin the second half year. Under the name of Geology 6, it will deal with the study of seismography and seismic prospecting, a course which has never before been given at Harvard, for lack of the proper instruments...