117 
TEE repr ne army T bh | T de i T T ¥ T ry T rey 
' 
ea VASSAL YANN 
ring the pressures required to force water 
McLean: Permeability of Citrus Leaves 
19,1 
4 
- Diagram of the apparatus used for measu 
Fic. 1 
through th 
e stomata of citrus leaves. 
