ON examining the data contained in Mr. Pillsbury's interesting and valuable résumé on colour measurements in the United States, by means of ordinates and abscissæ for the various colours on squared ...
IN view of the letters, recently printed in NATURE, by Mr. H. H. Pillsbury and Mr. Herbert Spencer, it may be well to state that Chevreul published an “Exposé d'un moyen de définir et de nommer les ...
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