LECTURES ON 

 PLANT PHYSIOLOGY 



BY 



DR. LUDWIG JOST 



PROFESSOR OF BOTANY IN THE UNIVERSITY OF STRASSBURG 



AUTHORIZED ENGLISH TRANSLATION 



BY 



R. J. HARVEY GIBSON, M.A, F.L.S, 



PROFESSOR OF BOTANY IN THE UNIVERSITY OF LIVERPOOL 



WITH 172 ILLUSTRATIONS 



OXFORD 



AT THE CLARENDON PRESS 



1907 



