Page:Popular Science Monthly Volume 86.djvu/299

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VOLCANIC ACTIVITY OF LASSEN PEAK
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Fig. 2. The Eruption of June 14, 1914. This series, showing four stages in the eruption beginning at 9:45 a. m., was obtained by Mr. B. F. Loomis, of Viola, from a point about six miles to the northwest at an elevation of nearly 5,000 feet. The time interval represented by the four views of the plate is about fifteen minutes.