PROPAGATING-FRAMES. 



47 



49. Propagating-ovcn. 



through the box. A lamp, D, supplies the heat, 

 funnel of tin, e e, distrib- 

 utes the heat evenly. 

 Holes should be provided 

 about the bottom of the 

 box to admit air to the 

 flame. A modified form 

 of this device is shown in 

 Figs. 50 and 51. The 

 water tray, G, slides in 

 upon ledges, so that it 

 can be removed, and the 

 heat funnel, L D L, slides 

 in similarly and is made 

 to surround the flame like a chimney. The front side of 



the apparatus is rempva- 

 ble, and the top of the 

 frame, K, is made of 

 metal. The cover for 

 this apparatus is shown in 

 Fig. 51. The ends, a a, 

 are made of wood, with 

 openings, indicated by 

 the arrows, to allow of 

 50. Modified form of Fig. 49. ventilation. The front 

 and top, g g, are made of glass. The frame-work, c c c, 

 is made of metal. The cover is hinged on, or held with 



pegs, 1 1, Fig. 50. 

 Chauviere' s 

 propagating- 

 oven, a French 

 apparatus, is 

 shown in Fig. 

 52. It is essen- 

 tially a minia- 

 ture greenhouse. The sashes are seen at c c, and over 

 them is a cloth or matting screen (shown at the right). 



ST. Cover for Fig. 50. 



