XXIV. ONION 



Material. — Onions cut in two lengthwise. If the halves are dried for 

 a week, their layers may be more plainly traced. 



Observation. — How thick are the outer wrappings 

 of the onion? What is their color? How many 

 roots has the onion ? What is the shape of the roots ? 

 Do you see any green leaves on the outside of the 

 onion ? 



How many layers do you see on the cut side of 

 the onion ? How thick is one of the layers ? To 

 what are the layers fastened ? What is their color ? 

 Where are the leaves inside of the onion? Where 

 is the stem to which they are fastened ? What is 

 the shape of the stem ? Of what is the greater part 

 of the onion composed, stern, leaves, or roots ? 



Drawing and Composition. — Draw a picture and 

 write a description, first, of the outside of an onion, 

 and second, of the inside of an onion that has been 

 cut in two lengthwise. 



SUPPLEMENTARY WORK 



Seed Onions. — An onion plant blossoms and bears seed. If 

 a seed is planted in the spring, a new onion forms during the 

 summer. In the fall its leaves die, but the onion itself consists 

 of new leaves and a flower stalk, wrapped into a ball called 



105 



