Hughes
The publication of this work has been unavoidably delayed for a year, and I now quote briefly from an address of Dr. C. W. Siemens, during the late meeting of the British Association at Southampton, as reported in the Times. I have strictly endeavoured to make my investigations according to his views of combining scientific knowledge with practical utility. [Harmonies of Tones and Colours, Introduction2 - Harmonies, page 10]