GENERAL INTRODUCTION 6 



The publication of these books marks a distinct departure in 

 the policy of the American Chemical Society inasmuch as it is 

 a serious attempt to found an American chemical literature with- 

 out primary regard to commercial considerations. The success 

 of the venture will depend in large part upon the measure of 

 cooperation which can be secured in the preparation of books 

 dealing iidequately with topics of general interest; it is earnestly 

 hoped, therefore, that every member of the various organizations 

 in the chemical and allied industries will recognize the impor- 

 tance of the enterprise and take sufficient interest to justify it. 



AMERICAN CHEMICAL SOCIETY 



BOARD OF EDITORS 



Scientific Series:— Technologic Series:— 



William A. Noyes, Editor, Harrison E. Howe, Editor, 



Gilbert N. Lewis, Walter A. Schmidt, 



Lafayette B. Mendel, F. A. Lidbury, 



Arthur A. Noyes, Arthur D. Little, 



Julius Stieglitz. Fred C. Zeisberg, 



John Johnston, 

 R. E. Wilson, 



E. R. Weidlein, 

 C. E. K. Uees, 



F. W. Willard. 



