THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Yol. XIII. (KS.), lo. 29. FEBRITART, 1913. 



OSMOTIC PRESSURES IN PLANTS. 



II. — Ceyoscopic and Conductivity Measurements on some 



Vegetable Saps. 



BY 



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



UNIVEESITY PROFESSOR OF BOTANY, TRINITY COLLEGE, DUBLIN ; 



AND 



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



ASSISTANT TO TUE PROFESSOR OF BOTANY, TRINITY COLLEGE, DUBLIN. 



( /I ufhors alone are responsible for all opinions expressed in their Communicaiions.'\ 



DUBLIN : 



PUBLISHED BY THE ROYAL DUBLIN SOCIETY, 



LEINSTER HOUSE, DUBLIN. 



WILLIAMS AND NOEGATE, 



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



1913. 



Price Sixpence. /<^^^^^" '"^^'tuf^ 



JUL 7 1913 



