PREFACE 



THESE Papers are selections from the writings 

 of Sir Charles Bell [1774-1842] and Dr. Jeffries 

 Wyman [1814-1874]. They are memorable ex- 

 amples of careful observation, sound reasoning, 

 and clear description of the objects of which they 

 treat. 



They are reprinted as worthy the serious con- 

 sideration of all those in preparation for their life- 

 pursuits. 



MORRILL WYMAN. 



CAMBRIDGE, 1902. 



