vni PREFATORY NOTE TO AMERICAN EDITION. 



tion in the human and animal body may be regarded 

 as an earnest-penny of greater good hereafter. 



The new medicine will require a new preliminary 

 training of its workers. A few investigators in biology 

 and medicine have been wise enough to foresee the 

 path which future inquiries must follow; we should 

 be thankful that they have prepared themselves for 

 the pioneer work of blazing the trail. Notable 

 among these hardy explorers are some of our fore- 

 most American workers in physiology. Among Euro- 

 pean scientists, Dr. W. Pauli of Vienna stands out 

 prominently as a representative of the forward move- 

 ment. His researches in physiology and pharmacology 

 have dealt almost entirely with problems in the solu- 

 tion of which the methods of physical chemistry have 

 been applied. In his recent studies in colloidal chem- 

 istry he has been prying into and attempting to illu- 

 minate some of the darkest of the regions in which 

 physiological chemists grope. 



The American publishers of Dr. Pauli's papers have 

 been fortunate in securing the services of Dr. Martin 

 Fischer as translator. The experience he has gained 

 by his personal researches in similar fields, and his 

 familiarity with the bibliography of the whole sub- 

 ject, especially fit him for the task. 



May Dr. Pauli's papers stimulate American stu- 

 dents to further investigations where they are so much 

 needed, and may he and they collect speedily for us 

 a body of facts which we, as medical men, may utilize 

 in the diagnosis of disease and the cure of human ills! 



LEWELLYS F. BARKER. 



BALTIMORE, Oct. 23, 1906. 



