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NA T URE-STUD Y RE VIE W 



[13:7— Oct., 1917 



again drags them through the vein halls, leaving certain amounts at 

 each door. There are two kinds of doors, entrance doors and 

 exit doors. Through the entrance doors go the raw materials and 

 they are situated on the upper and middle part of the factory while 

 the stoma, or exit door, are on the under side of the factory and 

 hidden with shrubbery composed of fine hairs. Through these 

 doors the waste oxygen passes out. 



Now, there are other products or materials made after the 

 starch. These are sugars, cork and certain kinds of oils. Miss 

 Tree knows that she can not store the sugars away, because certain 

 bad roving boys, called yeast cells, sneak in and eat up all the sugar 

 and disturb the factory. She can store the cork, which she does by 

 lining the trunk elevator shaft. The oils she saves to give to her 

 little seed babies and some starch too. 



Would you like to hear more about these seed babies "•' In late 

 spring Miss Maple Tree sends out wedding invitations to the wind 

 and the insects to attend the marriage of each one of her pistillate 

 flowers to her pollen bearing blossoms. In late summer and early 

 autumn, before the autimm ball begins, little seed babies begin to 

 appear with dainty little frail green wings. They hug their mother 



tree tended}^ for a long 

 time. As they get older. 

 Grandmother Nature whis- 

 pers to them, that it is time 

 for them to say good-bye to 

 their Mother. They obey, 

 and tearing away from 

 Mother Maple, they fly oft' 

 on the back of Mr. Wind. 



After traveling long dis- 

 tances, they become tired 

 and drop to the earth. 

 They have been told by 

 Mother Maple never to be 

 lazy. They remember this 

 and immediately start to 

 build their subways and 

 elevator, and some of them 

 will grow big enough so 

 that they too, can attend 

 the autum ball, to which their Mother goes every year. 



