PREFACE 



years of unremitting labor. Vastly different from the ordinary 

 lines of commercial color work, the correct copying of each one of 

 the 1115 colors of the original plates developed many perplexing 

 and often discouraging problems, which were finally solved through 

 Mr. A. B. Hoen's expert knowledge of chemistry and pigments; 

 the skill, industry, and patience of the firm's head colorist, Mr. 

 Frank Portugal, and the personal interest of both these gentle- 

 men. It is, therefore, with the greatest pleasure that the author's 

 grateful acknowledgment is made to the firm of A. Ho^N & 

 Company for the satisfactory manner in which they have fulfilled 

 their contract. 



