Spray of Ivy.
7. Dora was holding up one spray after another to the light. 'What are all these pretty marks on the leaves, mother, lines crossing about all ways?'
'Those are veins, dear. They carry the sap that feeds the leaves.'
8. 'What is sap?'
'The blood of plants and trees.'
'Oh,' said Dora, 'then that is the wet that comes out when I pick a flower or cut a leaf!
9. 'But look at this!' and she held up one of the sprays.
At the end of it was a little bunch of white, curly roots. Each root was not much thicker than a thread.
10. 'Don't touch them,' said the mother; 'roots are very tender things.'
'What is the good of them?' asked Dora.