

PREFACE TO THE EIGHTH EDITION.' 



THE Eighth Edition is the result of an increased 

 demand for this work, involving the necessity for a re- 

 print at an earlier period after the publication of the 

 Seventh Edition than was anticipated. The opportunity 

 has been seized for making corrections and additions where 

 they appeared to be most needed ; but the present issue 

 must be regarded as, in great part, a reprint of the Edition 

 of 1869. 



W. MORRANT BAKER. 



THE COLLEGE, 



ST. BARTHOLOMEW'S HOSPITAL, 

 October, 1872. 



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