GOLLKt OF DENTISTRY 

 OF CALIFORNIA 



PREFACE TO THE FOURTH EDITION. 



IN the present edition the book has been revised, and in 

 parts rewritten. A considerable amount of new matter has 

 been added, especially in the chapter on The Central 

 Nervous System. In this portion of the subject our know- 

 ledge is advancing ' by leaps and bounds,' and it is difficult 

 to keep pace with it. If, among the many works which 

 I have consulted, I were to single out one as that to which 

 I am particularly indebted, it would be the admirable book 

 of Dr. Barker. The additions in other parts of the volume 

 have been for the most part balanced by the omission of 

 some passages and the abridgment of others, and its bulk 

 is only a little increased. 



G. N. STEWART. 



CLEVELAND, August 13, 1900. 



