FAMILIAE 



LETTERS ON CHEMISTRY, 



AND ITS RELATION TO 



COMMERCE, PHYSIOLOGY, AND AGRICULTURE. 



BY BARON JUSTUS LIEBIG, M,D,, P.H.D., F1S,, ILR.I.A, 



PROFESSOR OF CHEMISTRY IN THE UNIVERSITY OF GIESSEN, 



AND 



AUTHOR OF "AGRICULTURAL CHEMISTRY," "ANIMAL CHEMISTRY," 

 "MOTION OF JUICES IN ANIMAL BODY, AND CURE OF THE POTATO 

 DISEASE/' " CIJEMISTRY AND PHYSICS IN RELATION TO PHY- 

 SIOLOGY AND PATHOLOGY," " LETTERS ON CHEMISTRY," 

 ' FIRST' AND ' SECOND SERIES/ " CHEM- 

 ISTRY OF FOOD," ETC., ETC. 



EDITED BY JOHN GARDINER, M. D. 



MEMBER OF THE CHEMICAL SOCIETY. 



FROM THE LAST LONDON EDITION, REVISED AND CORRECTED. 



T. B. PETERSON, No. 102 CHESTNUT STREET. 



