Note BX — Front matter (continued 6)
Reading edition
Professor Dana inclines to date the erosion of the Hudson trough so far back as the Jura-Trias period.—American Journ. Science, xl., p. 435.
Reading edition
Professor Dana inclines to date the erosion of the Hudson trough so far back as the Jura-Trias period.—American Journ. Science, xl., p. 435.