240 AGRICULTURE. 



can and half-way across the bottom to the hole in the 

 center. 



{l>) Carefully spring tlie can far enough apart to admit 

 the limb (which should be well wrapped with cloth just 

 where it is encircled by the bottom of the can, to keep it 

 from being cut), and adjust it so that the girdled portion 

 will be in about the center of the can. 



(c) Wrap the can securely in both directions with 

 wire, and support it by attaching the wire to an upper 

 limb. 



(if) Now fill the can with moist soil, and see that it is 

 kept moist. 



(e) When the soil is filled with roots cut off the stem 

 below the can, prune back the top, and transplant where 

 desired. 



An ingenious teacher may contrive many simple de- 

 vices for layering by using such material as is at hand, 

 as, chalk-boxes, etc. 



(3) Where several layers are to be obtained at one 

 time from a tall shrub or small tree, a long box of soil 

 may be supported by a post beneath the twigs to be 

 layered. These must be pegged down in the soil until 

 rooted. For any particularly desirable bud variation 

 ('* sport") this plan is especially advantageous. 



C— REFERENCES. 



" Top Working Orchard Trees." Year-book, 1902. 



"The Superior Value of Large Heavy Seed." Year-book, 

 1896. 



"Testing Seeds at Home." Year-book, 1895. 



" Seed Selling, Seed Growing, and Seed Testing." Year-book, 

 1899. 



"The Propagation of Plants." Farmers' Bulletin 157, United 

 States Department of Agriculture. 



" The Apple and How to Grow It." Farmers' Bulletin, 113. 



" Plant Propagation." Circular No. 13, Missouri Agricultural 

 Experiment Station. 



