Abstract
I CONFESS that I was not aware of a large map by J. Gary on the scale of one inch to two miles. The one that I mentioned, with mail-coach routes in blue, is of constant service to me. Great confusion has been caused in regard to Griffith's geological maps of Ireland by references to them as successive editions, as if all were published and on the same plan and scale. Maxwell H. Close (Journ. R. Geol. Soc. Ireland, vol. v., p. 136, 1879) is, I think, responsible for calling a geological map exhibited in 1815 “the first edition,” but he carefully added that it was never printed, and he evidently meant only “the first form.” He emphasised the fact, by underlining the word, that W. Smith's map of England was published in the same year. Griffith's map of 1835 was, according to John Phillips (op. cit. above, p. 138), large, but also unpublished. Phillips utilised its details in 1838. In 1838 a coloured geological map by Griffith was issued in connection with the Report of the Railway Commissioners, scale one inch to ten miles. A few months later in the same year his large map (one inch to four miles) appeared under the same auspices, and was, as Close tells us, sold to the public from March 28, 1839. These two maps of 1838 can scarcely be called two editions of the same ground work, since they were both simultaneously in preparation. The large map of 1838 (published, with date, in 1839) was completely revised and re-engraved, with the addition of mineral localities, and issued in six sheets in April, 1855, the date being engraved on it against Griffith's signature. The map of 1853 was a small one (one inch to sixteen miles), and was issued in a guide to land-valuers.
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Old Maps. Nature 106, 180 (1920). https://doi.org/10.1038/106180d0
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DOI: https://doi.org/10.1038/106180d0
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