Xll PREFACE. 



College of Surgeons, delivered successively, 

 during many years, by the late Sir Everard 

 Home, Sir Astley Cooper, Mr. Lawrence, 

 Mr. Brodie, Mr. Green, and Sir Charles 

 Bell ; and also from those of Professor Grant, 

 at the University of London. 



I have likewise to return my thanks for the 

 liberal manner in which the Board of Curators 

 of the Hunterian Museum gave me permission 

 to take such drawings of the preparations it 

 contains, as I might want for the illustration 

 of this work ; and to Mr. Clift, the conserva- 

 tor, and Mr. Owen, the assistant conservator 

 of the museum, for their obliging assistance 

 on this occasion. Mere verbal description can 

 never convey distinct ideas of the form and 

 structure of parts, unless aided by figures ; 

 and these I have accordingly introduced very 

 extensively in the course of the work.* 



Being compelled, from the nature of my 



* All the wood engravings have been executed by Mr. 

 Byfield, and the drawings for them were, tor the most part, made 

 by Miss Catlow, whose assistance on this occasion has been 

 most valuable to me. 



