Note 30 — Historical Background
Reading edition
T. M. Hall, “On Barum Tobacco-Pipes and North Devon Clays,” Report and Transactions of the Devonshire Association for the Advancement of Science, Literature, and Art, Devon, 1890, vol. 22, pp. 317-323.
Reading edition
T. M. Hall, “On Barum Tobacco-Pipes and North Devon Clays,” Report and Transactions of the Devonshire Association for the Advancement of Science, Literature, and Art, Devon, 1890, vol. 22, pp. 317-323.