PROPAGATING DEVICES. 



51 



Zinc propagating-tank. 



at that point. Various devices are employed for the pur- 

 pose of securing these advantages to the best effect. These 



usually 



are 



double pots, 

 in one of 

 which water 

 is placed. A 

 good method 

 is that rep- 

 resented in 

 Figure 56, 

 which shows 

 a pot, b, 

 plugged with 

 plaster of 



Pans at the bottom, placed inside a larger one. The 



earth is placed between the two, drainage material occu- 

 pying the bottom, a, and fine soil the 



top, c. Water stands in the inner pot ^ 



as high as the dotted line, and feeds 



uniformly into the surrounding soil. 



The positions of the water and soil 



are frequently reversed, but in that 



case there is less space available for 



cuttings. A double pot, with moisture 



supplied in a surrounding cushion of 



sphagnum moss, is seen in Fig. i. 



Neumann's cutting-pot is shown in 



Fig. 57. This contains an inverted pot in the center, a, 

 designed to supply drainage and to 

 admit heat into the center of the mass 

 of soil. A good method of striking 

 difficult subjects is as follows : Fill a 

 saucer with moss. Upon this place 

 an inverted flower-pot. Insert the 



S7. JV;?a«a««'j cutting- ^^^^^^^ through the hole in the bot- 



56. Forsytes cutting- 

 pot. 



