vill PREFACE. 
devoted to the general principles and elementary facts of Embryology. Then 
follow, in an order best suited for the student, the chapters dealing with the 
various systems of organs; whilst the last seventy-five pages are used for the 
purpose of applying the information conveyed in the preceding part of the book 
to the practice of medicine and surgery. Hach chapter is more or less complete 
in itself, although an effort has been made to weld them all into one consistent 
whole. 
The numerous illustrations which appear in the text are all new in the sense 
that in no case has an old drawing or an old block been used. Further, the vast 
majority of the illustrations are new in the sense that they are original. The 
very few that are not have been taken from monographs dealing with the subjects 
so illustrated, and in every case the source from which these have been obtained 
is acknowledged in the text. The drawings for each section were prepared under 
the personal supervision of its author, and, with the exception of the figures in 
two chapters, they are the work of Mr. J. T. Murray. This talented artist has 
devoted much time to the undertaking, and the reader can judge for himself the 
success which has attended his efforts. The Editor cannot sufficiently express his 
indebtedness to Mr. Murray for the great technical skill and the patience which he 
brought to bear upon this extremely trying and difficult work. The chapter on 
Osteology has been illustrated by Mr. W. C. Stevens; that upon Embryology by 
the authors themselves ; whilst the microscopical drawings in the section on the 
Brain and Cord were executed by Mr. Wm. Cathie. It is also necessary to mention 
that the coloured outlines representing the attachments of the muscles on the 
figures of the bones were mapped in by Professor A. M. Paterson. 
The Editor has to thank his former Assistant, Professor A. F. Dixon of Cardiff, 
for much help in the correction of the proofs. 
Trinity Cottecr, DuBLin, 
June 1902. 
