RESEARCHES ON THE 



MOTION OF THE 



JUICES IN THE ANIMAL BODY; 



* 



AND THE EFFECT OF EVAPORATION IN PLANTS. 



TOGETHER WITH AN ACCOUNT OF THE 



ORIGIN OF THE POTATO DISEASE; 



WITH FULL AND INGENIOUS DIRECTIONS FOR THE PROTECTION 

 AND ENTIRE PREVENTION OF THE 



POTATO PLANT AGAINST ALL DISEASES. 

 BY JUSTUS LIEBIG, M.D., PH.D., F.B.S., M.R.I.A. 



PROFESSOR OP CHEMISTRY IN THE UNIVERSITY OP GIESSEN. 



ILLUSTRATED WITH FIFTEEN FINE ENGRAVINGS. 



EDITED FROM THE MANUSCRIPT OF THE AUTHOR, BY 



WILLIAM GEEGORY, M. D., 



PROFESSOR OF CHEMISTRY IN THE UNIVERSITY OF EDINBURQ. 



f)l)Uabd;pl)ta: 



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



