Abstract
MR. CROLL's statement (vol. xii. p. 494), that the North Atlantic inlat. 38° is above the level of the equator, is based partly on the Challenger soundings and partly on Muncke's determinations of the thermal expansion of sea-water, which, however, were not made on sea-water at all, but on a saline solution prepared for him by Leopold Gmelin, according to data furnished by the incomplete analyses of Vogel and Bouillon La Grange. As Mr. Croll's statement depends on such very minute differences of volume, I am led to ask him to compare the rate of expansion of real sea-water, as determined by Prof. Hubbard, with Muncke's table; he will notice a discrepancy sufficiently wide to make it a matter of interest to ascertain how far the employment of the American observations may serve to substantiate or modify his conclusion.
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THORPE, G. Oceanic Circulation. Nature 12, 514 (1875). https://doi.org/10.1038/012514b0
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DOI: https://doi.org/10.1038/012514b0
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