THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Yol. XIII. (I.S.), lo. 28. FEBMAET, 1913. 



OSMOTIC PRESSURES IN PLANTS. 

 I. — Methods of Extkacting Sap from Plant Organs. 



BY 



HENRY H. DIXON, Sc.D., F.R.S., 



UNIVERSITY PROFESSOR OF BOTANY, TRINITY COLLEGE, DUBLIN ; 



AND 



W. R. G. ATKINS, M.A., A.I.C., 



ASSISTANT TO TUB PROFESSOR OF BOTANY, TRINITY ^COLLEGE, DUBLIN. 



[A uthors alone are responsible for all opinions expressed in their Gommunications-I 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTER HOUSE, DUBLIN. 



WILLIAMS AND NOEGATE, 

 14, HENRIETTA STREET, COVENT GARDEN, LONDON. W-C. 



1913. 



Price One Shilling. ( ^ 



JUL 7 1913 



