IX. OUTSIDE AND IN. 



'75 



it becomes a grave question for them whether the 

 old ones are to lie flat or edgeways, and whether 

 they must therefore grow out of their faces or their 

 edges. And we must at once understand the way 

 they contrive it, in either case. 



Among the many forms taken by the Arethusan 

 leaf, one of the commonest is long and gradually 

 tapering, — much broader at the base than the 

 point. We will take such an one for 

 examination, and suppose that it is 

 growing on the ground as in Fig. 20, 

 with a root to its every fibre. Cut 

 out a piece of strong paper roughly 

 into the shape of this Arethusan leaf, 

 a, Fig. 21. Now suppose the next 

 young leaf has to spring out of the 

 front of this one, at about the middle 

 of its height. Give it two nicks with 

 the scissors at b b ; then roll up the 

 lower part into a cylinder, (it will 

 overlap a good deal at the bottom,) 

 and tie it fast with a fine thread : so, 

 you will get the form at c. Then 

 bend the top of it back, so that, seen sideways, it 

 appears as at d, and you see you have made quite 

 a little flower-pot to plant your new leaf in, and 

 perhaps it may occur to you that you have seen 



Fig. 20. 



