Vol. s3-14, Issue 82, 1877October 01, 1877 EDT
History of Cavern Exploration in Devonshire, England
History of Cavern Exploration in Devonshire, England
W. Pengelly,
Pengelly, W. (1877). History of cavern exploration in Devonshire, England. American Journal of Science, s3-14(82), 299–308. https://doi.org/10.2475/ajs.s3-14.82.299