PREFACE TO THIRD EDITION 



E\-ERY section of this manual has been carefully and completely 

 revised. Some have been partially, and many, such cis the Ner\'ous 

 System and its Development, have been entirely rewritten. It has 

 still been considered advisable to retain the old anatomical nomen- 

 clature until such time as a standard nomenclature has been fixed 

 and generally accepted. The Appendix, however, containing a 

 large number of the terms of the Basle nomenclature, has been re- 

 tained for those who A^ash to refer to them. The subject of Embry- 

 ology is still partially dealt with by appending to the description of 

 each organ a concise accoimt of its development. Over and above 

 this an entirely new and complete chapter, dealing with General 

 Embryology, has been added, with the \4ew of elucidating many 

 points in the various concise developments. This chapter has 

 been specially and skilfully illustrated. 



The author has to acknowledge with deep gratitude the valuable 

 assistance which he has so willingly received from his demonstrator. 

 Dr. Peter Thomson, M.A., B.Sc, in preparing this edition for the 

 press. He has also to thank the pubhshers for the great labour 

 which they have kindly imdertaken in various directions, and for 

 the great care which they have bestowed upon the pubUcation of 

 this edition. 



Many new figures have been added, all of which have been executed 

 bv the well-known anatomical artist, Mr. James T. Murray, Edin- 

 burgh, who has done his work with rare excellence, and whom the 

 author desires to thank most cordially. He also begs to thank all 

 those authors who have kindly and generously granted permission 

 to use their figures. 



The Anderson College of Medicine. 

 Glasgow, 



January, 1916. 



