IN presenting this volume to the consideration of practical men and others interested in the subject of paint making and color grinding, it has been the aim of the author to incorporate the results of almost a life time of work and study of paint problems, in a way that should be readily understood by interested readers. It is not the object of the author to tell the reader, how to make inferior goods for the purpose of gain. If he looks for such information he will have to work this scheme out for himself. The idea of the work is to show, how economy can be practiced and rational methods adopted, so that high grade or standard goods may be produced and reputation maintained in the face of competition.

The author, from the very start in his career, nearly thirty years since, when in the employ of one of the oldest firms in this country, has had the good fortune to be associated with technical men, who endeavored to have the very best products it was possible to manufacture. To these associations, and with the aid of a well equipped chemical laboratory and its learned chief, is due the author's ability to offer a work of this character, which has been written only after much persuasion by friends in the trade. It is the hope of the author, that the work will be favorably received and serve as a volume of reference to practical men and as a handbook for beginners.

In presenting the formulas in Part VI as well as those in the body of the book, the author desires to say to those, who are yet unfamiliar with the practical work in a paint factory, not to condemn a formula or suggestion, when it does not appear successful at the first attempt, but to think it over with a view to discover, where an error might have been made. After all, while formulas are of great assistance to the practical man, a certain knack in manipulation is essential to success.

Charles L. Uebele

December, 1913.