in the cuttings themselves must not be greatly de- 

 pleted. This would be the case were all the leaf surface 

 allowed to remain or that retained exposed to free cir- 

 culation of air, moist though that of the propagating 

 house may be. The usual plan is to cover cuttings 

 or frames containing them with newspaper (Fig. 18). 

 Factory cotton and cheesecloth are also used more or 

 less (Fig. 15). These materials are all placed where the 

 sun strikes the beds. 



160. Screens for seedlings are perhaps best made by a picket 

 machine which binds builders' lath with woven strands of wire. 

 These screens are quicker made, cheaper, more flexible, durable 

 and easier handled than those nailed together. 



