CHEMISTRY 



IN ITS APPLICATION TO 



AaUICULTUEE AND PHYSIOLOGY. 



BY • 



JUSTUS LIEBIG, M.D., Ph.D., F.R.S., M.R.I.A., 



// 



PROFESSOR OF CHEMISTRY IN THE UNIVERSITT OF GIESSEN, 

 ETC., ETC., ETC. 



' / 



EDITED FROM THE MANUSCRIPT OF THE AUTHOR 



By LYON PLAYFAIR, Ph. D. 



VERY NUMEROUS ADDITIONS, AND A NEW CHAPTER ON SOILS. 



THIRD AMERICAN, FROM THE SECOND ENGLISH EDITION, 



WITH 

 NOTES, AND APPENDIX, 



BY 



JOHN W. WEBSTER, M.D., 



ERVINO PROFESSOR OF CHEMISTRY IN HARVARD UNIVERSITY. 



Of XBoT^^^ 



CAMBRIDGE: 

 PUBLISHED BY JOHN OWEN. 



BOSTON, JAMES MITNROE AND COMPANY, AND CHARLES C. LITTLE AND JAMES BROWN ; 



NEW YORK, WILEY AND PUTNAM, AND OEOROK C. THORBURN ; PHILADELPHIA, 



THOMAS, COWPERTHWAIT, AND COMPANY, AND CAREY AND HART ; 



BALTIMORE, CUSHINO AND BROTHER. 



1842. 



