PREFACE 



TO THE 



THIRD AMERICAN EDITION. 



This volume constitutes the First Part of Professor 

 Liebig's Report on Organic Chemistry, drawn up by 

 request of the British Association for the Advancement 

 of Science.* 



The interest excited in Great Britain on the appear- 

 ance of this work from one of the most eminent 

 chemists in Europe, and the high encomiums be- 

 stowed upon it by individuals, and learned bodies, 

 together with the various notices of it which have 

 been published by Professor Lindley, Professor Dau- 

 beny, and others, all concurring in the opinion, that 

 the information it contains is of great amount, and 

 that from its publication might be dated a new era 



* The Second Part has just been published, viz., "Animal Chemistry, 

 or Organic Chemistry in its Application to Physiology and Pathology. 

 By Justus Liebig, M. D., F. R. S., M. R. 1. A., Professor of Chemistry 

 in the University of Giessen, &c., &c., &c. Edited from the Author's 

 Manuscript, by William Gregory, M. D., F. R. S., M. R. I. A., 

 Professor of Medicine and Chemistry in the University and King's 

 College, Aberdeen. With Additions, Notes, and Corrections, by Dr. 

 Gregory, and others by John W. Webster, M. D., Erving Professor of 

 Chemistry in Harvard University." 



a* 



