Abstract
I NOTICE in your description of the exhibits at the Royal Society Conversazione in NATURE of May 23, p. 820, a brief mention of the method of colour-matching lamps by means of alkali photo-electric cells, shown by the National Physical Laboratory. As stated in the programme of the Conversazione, this method of colour-matching was first developed by the staff of the Research Laboratory of the General Electric Co., who kindly made for us the cells used, which are now being shown in the Royal Society's exhibit at the British Empire Exhibition. I shall be glad if you will allow me the opportunity of making this acknowledgment in your columns.
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PETAVEL, J. Photo-electric Cells for Colour-matching. Nature 115, 875 (1925). https://doi.org/10.1038/115875c0
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DOI: https://doi.org/10.1038/115875c0
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