11. 
12. 
13. 
THE RADISH 47 
closely, you will find a strip of green running from 
one to another. This shows that they are not 
separate leaflets at all, but only very deep 
notches in one leaf. 
You can now discover another interesting thing 
about the radish. 
Examine the oldest leaves. These are on the out- 
side of the leaf group. How deep are the notches 
in these leaves? Now look at a young small 
leaf in the center of the leaf group; how deep 
are its notches? Count the pairs of notches in 
each leaf. How many are there? 
By comparing these leaves you will see that the 
first leaves the radish sends out are very simple, 
but each new leaf is more beautiful and com- 
plicated. It seems almost as though the radish 
learned to do better every time it grew a new 
leaf. 
Hold a leaf up to the light and notice the veins. 
Notice the large vein or midrib that runs through 
the middle of the leaf; the branches of the mid- 
rib, the network of veins. This is a net-veined leaf: 
Examine the leaf on both sides. Do the veins look 
the same on the back and on the front? Why 
not? 
