THE BLACKBERRY 15 
8. Pick off five or six of the small balls around the 
end with the whitish spot. What are they 
fastened upon? 
Vertical Section 
9. Cut a vertical section of the blackberry, and cut 
from one end to the other so that the knife 
goes through the center of the white spot. This 
must be very carefully done with a sharp knife, 
or the blackberry will be mashed. Notice the 
white or pinkish core that runs through the 
middle. What is fastened to it on each side? 
Cross Section 
10. Cut a cross section. Here the core shows a round 
spot with the balls fastened around it. 
The juice will probably stain the cores of both sec- 
tions so that they appear as pink or purplish pink. 
ll. If you have pieces of the stem, examine them; if 
not, look at the plate and notice the sharp thorns. 
Which way do the thorns turn? 
Notice how the blackberries are fastened to the 
stems, and the little brown hulls above them. 
One blackberry in the picture has been picked off, 
leaving the hull. Which is this? Notice the 
