PEACTICAL 



PHYSIOLOGY OF PLANTS 



BY 



FRANCIS DARWIN, M.A., F.R.S., 



FELLOW OP Christ's college, oambbidge, 

 AND header in botany in the university, 



AND 



E. HAMILTON ACTON, M.A., 



fellow and LECTUKEn OP ST JOHN's COLLEGE, CAMBRIDGE 



WITH ILLUSTRATIONS. 



CAMBRIDGE : 

 AT THE UNIVERSITY PRESS. 



1894 



[All Bights reserved.'] 



