The published works of numerous authors have been con- 

 sulted from time to time, and we would specially acknowledge 

 our indebtedness to the writings of Mackenzie and Sherren, to 

 whom reference is frequently made in the different sections. 



To Mr. Harold Stiles, whose teaching has formed the in- 

 spiration of this book, we desire to express our sincere thanks 

 for the valuable advice and suggestions with which he has so 

 frequently helped us. As one of the authors has had the 

 privilege of being associated with Mr. Stiles for some years, our 

 debt to him is even greater than is indicated by the frequent 

 recurrence of his name in the text. 



We also desire to offer our warmest thanks to Professor 

 Robinson, who, in addition to having placed much of his material 

 at our disposal for the purposes of illustration, has frequently 

 given us the benefit of his criticism and advice. We are also 

 indebted to Dr. E. B. Jamieson, whose counsel on the subject 

 of nomenclature and on points of anatomical detail was often 

 sought ; and to Mr. R. J. M. Home, who gave us much help 

 while the volume was passing through the press. 



The radiograms, except when otherwise acknowledged, 

 are the work of Dr. Edmund Price, whose kindness we highly 

 appreciate. We also desire to thank our publishers for allowing 

 us to reproduce many of the excellent illustrations in Cunning- 

 ham's Textbook of Anatomy and in Cunningham's Manual of 

 Practical Anatomy. The numerous new illustrations and 

 diagrams have been drawn for us by Mr. J. T. Murray, to whom 

 we are greatly indebted for the skill and care which he has 

 expended upon them. 



L. B. 

 T. B. J. 



EDINBURGH, 1915.' 



