Vlll PREFACE. 



and the right preparation for the one is the best qualification 

 the student can take with him for the other. 



The Author hopes he has prepared a work which will prove 

 useful not only to students proceeding for Higher Examinations 

 in Anatomy and Surgery but also to men actively engaged in 

 practice. Every day conditions come under their notice which 

 can be explained only by a reference to Embryology. He 

 has sought to sketch as briefly and clearly as possible the 

 history of the developing human body. History is the best 

 key to an understanding of the present conditions of a country; 

 the Embryologist and Comparative Anatomist are the dual 

 historians of the human body. 



The Author is deeply indebted to Mr. F. G-. Parsons for re- 

 vision of his proofs and numerous suggestions and corrections. 



December, 1901. 



