THE NURSERY-BOOK. 



supplies the heat. A funel of tin, e e, distributes the heat evenly- 

 Holes should be provided about the bottom of the box to admit 

 j^v air to the flame. A modi- 



Nv fied form of this device is 

 shown in Figs. 35 and 36. 

 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 



35- Modified form of Fig. 34. 



of the apparatus is removable, and the top of the frame, K, is 

 made of metal. The cover for this apparatus is figured in 

 Fig. 36. The ends, a a, are made of wood, with openings, indi- 

 cated by the arrows, to allow of 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. -35. 

 Chauviere's propagating-frame, an apparatus used by the 

 French, is shown in Fig. 37. It is essentially a miniature green- 

 house. The sashes are seen at c c, and above them is a cloth or 

 matting screen. The sides below the sashes are enclosed, pre- 

 ferably with glass. The bottom or floor is moveable, and it is 

 sometimes divided into two or three sections to allow for the ac- 

 commodation of plants of different sizes and requirements.. 

 These sections are raised or lowered and are held by pegs. At a 

 is shown a section of floor elevated, and at the left another sec- 

 tion occupy- 

 i n g a lower 

 p o s i t i o n . 

 Heat is sup- 

 plied usually 

 by hot water 

 in the tubes, 

 d d. A very 





Fig. 36. Cover for Fig. 35. 



elaborate circular French device, known as Lecoq's propagating- 

 oven, is illustrated in Fig. 38. It is an interesting apparatus, 



