1896.] Water Current in Cucumber Plants. 555 
through the interior of the third node which is 9 em. long. 
1:35 p.m. The stem was now cut for examination. The sur- 
face of the eosine water in the bottle has not lowered percep- 
tibly. The diffuse stain in the first internode includes 
everything; the tissues are shriveled and seem to be dead. 
In the petiole of the first leaf there is a faint stain of the xylem 
part of each bundle; no diffuse stain into the phloem or any 
of the tissues outside of the bundle. At the base of the second 
internode (9 cm farther from the cut stem) the entire xylem 
of each bundle shows a pale red stain and this has diffused out 
from three bundles into the surrounding tissues. The second 
petiole, cut in the middle, shows a faint pink stain, best seen 
under the lens. It is sharply restricted to the bundles, but 
occurs in each one and includes the whole of the xylem. At 
the base of the third internode (9 cm. farther away from the 
fluid) the stain is fainter and is restricted to the xylem. It 
is in all of the bundles and is sharper (?) in the spirals of some. 
Apex of third petiole (down) shows faintest trace of color in 3 
bundles, only to be seen under the lens. Color more distinct 
in the middle part but very faint. Base of fourth internode 
(9 cm. further from the eosine) there is a very faint stain 
sharply restricted to the xylem of 6 bundles, all of which is 
stained. Middle of next lower petiole shows barest trace of 
stain in two bundles, not visible without a lens. Stain visible 
‘in ten bundles of a small fruit from the same node. The base 
of the next internede (10 cm. further down) shows not a trace 
of stain. Five cm. farther up, no stain. Additional 3 cm. 
up, i. e., close under the node, there is a faint stain in the 
xylem of three bundles and this is not restricted to the spirals. 
One-half centimeter closer to the node the color is faint and is 
still restricted to the three bundles. 
The stain seems to have travelled in all of the lignified walls, 
and it appears clear that the spirals did not carry it more 
than the other woody parts of the bundle. The movement of 
the eosine water down these stems, contrary to the water cur-. 
rent, was scarcely more abundant than the upward movement 
past the gelatine plugs. Judging from this, the very slow 
downward movement of the stain apparently follows another 
