THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Yol. 511. (I.S.), ]^o. 25. PEBMARY, 1910. 



ON OSMOTIC PRESSURES IN PLANTS ; AND ON 

 A THERMO-ELECTRIC METHOD OF DETER- 

 MINING FREEZING-POINTS. 



HENRY H. DIXON, Sc.D., 



UNIVERSITY PROFESSOR OF BOTANY IN TRINITY COLLEGE, DUBLIN. 

 AND 



W. R. GEL8T0N ATKINS, M.A., 



DEMONSTRATOR IN BOTANY, TRINITY COLLEGE, DUBLIN. 



\_A ufhors alone are responsible for all opinions expressed in their Communicaiions.] 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTER HOUSE, DUBLIN. 



WILLIAMS AND NORGATE, 



14, HENRIETTA STREET, COVENT GAEDEN, LONDON, W.C. 



1910. /^^N^^^«"'^"'"<^ 



JUN la iSiO 



Price One Shilling and Sixj)e7ice. \^ 



