Letter 9654
Darwin, C. R. to Lyell, Charles
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Discusses paper on volcanoes by J. W. Judd.
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Comments on volcanoes of the S. American Cordillera.
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Mentions paper by T. F. Jamieson ["Glacial period in N. Britain", Q. J. Geol. Soc. Lond. 30 (1874): 317–18].