Experimental Researches Concerning the Philosophy of Permanent Colours

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. I have, in the course of this work, commonly adopted the language, and, with a few exceptions, the principles or ex planations of modern chemistry, not as being wholly unobjectionable, but as acconnrnc best with kno...