it is indeed pitiable that such teaching should be seriously offered to artists and art-students.
It is satisfactory to know that several accomplished chemists are now devoting themselves to the practical study and improvement of pigments. Mr. A. P. Laurie, Mr. H. Seward, and Mr. J. Scott Taylor, are all doing good work in this direction.
It remains for me to express the hope that the readers of this volume will favour me with any material at their disposal which may serve for the correction and improve- ment of its pages. I am aware of having omitted to notice many interesting matters ; amongst these I include certain pigments, derived from coal-tar products, which have not yet been sufficiently tested. Then, too, the materials and methods of ceramic and glass painting have been excluded from consideration, mainly because their adequate treatment, while demanding much space, would have appealed to a comparatively limited group of students.
If painters and chemists will grant me their help, I trust that I may further justify, by means of an improved edition of my book, the favourable reception which I hope may be accorded to the first.
