Abstract
WILL some reader of NATURE kindly inform the writer, through this journal, what the elevation above sea-level and the location of Harton Colliery are, where Sir G. B. Airy made his pendulum observations on the force of gravity at the mouth and bottom of that mine in 1843, and also if the result of those observations is still generally accepted as correct.
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MCLENNAN, E. Elevation of Mouth of Harton Colliery. Nature 93, 507 (1914). https://doi.org/10.1038/093507d0
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DOI: https://doi.org/10.1038/093507d0
