INTRODUCTION TO THE AMERICAN EDITION 



" TIGERSTEDT'S Physiology " has been the standard text-book of German 

 students ever since its first publication in 1897. The preparation of a 

 third German edition afforded an opportunity of translating the work into 

 English as the new proof was delivered from the foreign presses. Dr. Murlin 

 presents the result of this task in the following careful and accurate repro- 

 duction of the original. 



The biological introduction is an admirable chapter of the book, affording 

 as it does a broad insight into the processes of the humbler forms of living 

 things. In view of the large participation in this department of physiology 

 by workers in our own country, this feature of the book will be especially 

 welcomed. 



Tigerstedt early wrote a monograph on the circulation of the blood which 

 to-day stands unrivaled, and in this important section of physiology the 

 present text-book is of commanding authority. He later established a respira- 

 tion apparatus for experiments on the metabolism of men, and this he used 

 not only in health but also for determinations of the life processes in 

 diseased conditions. Tigerstedt is the only author of a general text-book 

 of physiology who has had any experimental knowledge in this branch of 

 science. His chapter on metabolism is the most complete general account 

 given in any text-book in any language, and it is certain to have a wide 

 influence among the many in this country who are striving to obtain a 

 knowledge of those inner processes of the body which determine dietary 

 requirements in health as well as in disease. 



The treatment of the subject of the central nervous system, and the gen- 

 eralizations regarding its functions, is a masterpiece of its kind. In the 

 other parts of the book a wide range of knowledge is presented with a 

 sustained excellence of arrangement, and with that catholicity of selection 

 which has made the book so successful in other lands. 



It has been said that good physiology is the best preventive of bad 

 medicine. Tigerstedt's physiology is essentially good physiology, presenting 

 a picture of the modern scientific structure upon which modern medical 



