Abstract
IN NATURE for March 16 you published a summary of a communication which I had the honour to make to the Royal Society. My conclusion as to the value of the C.G.S. unit of heat was 4˙1940 × 107 ergs (see NATURE, p. 478), and I added the following comment: “If we express Rowland's result in terms of our thermal unit we exceed his value by 1 part in 930, and we exceed the mean value of Joule's (selected) determinations by one part in 350, … if we attach equal value to all the results published by Joule his value exceeds ours by 1 part in 4280.”
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GRIFFITHS, E. The Value of the Mechanical Equivalent of Heat. Nature 47, 537 (1893). https://doi.org/10.1038/047537b0
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DOI: https://doi.org/10.1038/047537b0
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