41 G TENANTS OF AN OLD FARM. 



leaf. Its mode of operation is generally very simple, 

 and you will better understand it by looking at these 

 figures (Figs. 130-131), wliicli show tlie nest of the Oak- 



FIGS. 130-131. — WORK OF LEAF-ROLLING MOTH. 

 (after RENNIE.) 



leaf roller in several stages of progress. The caterpillar 

 fixes to the edge of the leaf a few short threads, which 

 it spins from its mouth, and draws them to the op- 

 posite edge ; or it stretches a thread from the tip and 

 edges of the leaf to the mid-rib. Next it takes position 

 at or near the middle of these lines and bears down or 

 pulls down upon them. Of course the tightening of 

 the threads naturally curls uj) the edges of the loaf. 

 Do you understand that, Harry ?" 



" Well, I— I ," began the boy. 



"Speak straight out, lad !" said Hugh, "and don't 

 be ashamed of honest ignorance. Let your yea be yca^ 

 and your nay, im//, and don't worm around the truth 

 when it's put straight to yc." 



