ANATOMY OF THE CELL. 9 
On the other hand, if the cell is placed in contact with a 
solution of greater density than that of the cell-sap within, more 
liquid will flow out of the cell than into it, in a given time. 
If this process continues long enough, the vacuoles will become 
Fia. 4. 
Cross section of pith cell of Tuxodium distichum. a nucleus, b nucleoli, c protoplasmic body, 
d cell wall, e and s cell walls of two neighboring cells, g intercellular space, h pore 
eanal, i outer layer of protoplasm, k simple pore of which the protoplasmic body has 
grown to the portion of wall separatigg this from the corresponding pore of the neigh- 
boring cell. Cell is represented in condition of plasmolysis.—(Accd. to Th. Hartig.) 
so reduced in size that the protoplasm contracting around them 
becomes separated from the wall of the cell. In this condition 
the cell is said to be plasmolytic, and the process is known as 
plasmolysis. (See Fig. 4.) The living active cell is generally 
turgescent. 
term turgor, as sometimes used for osmotical pressure, says: “As the extension 
of the cell wall and all the conditions resulting from the pressure of the cell 
contents on the wall are entirely independent of the cause or origin of this 
pressure, it is expedient to understand the entire sum of this tension under the 
term turgor.”’ 
