OTHER LEAVES 



293 



Examine, with a microscope, a section of wood, looking for the pith, 

 medullary rays, and annual rings. Examine the boards in the room and 

 furniture to find the annual rings and medullary rays. 



REPORT OX TWIGS 

 Record your observations in a report. 



218. Other Leaves. — All leaves have the same work to 

 do as the leaves of the bean, but some leaves have other 



Figure 301. — Barberry Leaves. 

 Showing how a leaf may become a thorn. 



work in addition. The storage of food is one additional 

 task. Celery and rhubarb (pieplant) store food in the 



