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PROFESSOR GRAHAM ON OSMOTIC FORCE. 
movements should attain the highest velocity, being entirely dependent upon extent 
of surface. May it not be hoped, therefore, to find in the osmotic injection of fluids 
the deficient link which intervenes between chemical decomposition and muscular 
movement ? 
The intervention of the osmotic force is also to be looked for in the ascent of the 
sap of plants. The osmometer of albuminated calico appears to typify the vegetable 
cell; the ligneous matter of the latter being the support of a film or septum of albu- 
minous matter, in which the active properties of the cell reside. With a vegetable 
salt, like oxalate of potash above, and pure water below such a septum, an upward 
movement of the lower fluid would necessarily ensue. 
