382 



Scientific Proceedings^ Royal Dublin Society. 



Tabi.kVJI. 

 Ilex aquifolium. Wood-sap from Stem at 3-ft. level, and from Root. 



See grapli in fig. 4. 



Table VIII. 

 Populus alba. Wood-sap from Stem at 40-ft. level, and from Eoot. 



See graph in fig. 5. 



