CHAPTER XIV 
THE WATER PATH IN PLANTS 
How to determine the water path. You will be inter- 
ested to find the paths by which so much water flows 
through the plant. These may be shown in a very easy 
way. You may cut some nasturtium plants, or the wild 
dog’s-mercury, or chickweed, or similar plants. These are 
very good ones for the purpose. Cut also some sprays 
of hyacinth or other 
plant with white flow- 
ers. If there are maize 
plants or wheat plants 
half grown at hand, 
some of these should be 
used. Use also some 

good bleached celery : : 
leaves cut from a bunch. Fria. 139. Shoots of wood anemone and hya- 
‘ cinth in coloured solution. 
Set these shoots in a 
vessel containing red ink. Or, if preferred, a red dye can 
e e e 9 
be made by dissolving one of the red “diamond dyes” 
in water. In a few hours, sometimes, the plants will 
show the red colour in the leaves, or in the white petals. 
At least in a day they will begin to show the red colour. 
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