264 THE WALTONIAN CASE. 



abundance of stock for the garden, the green-house, or the 

 window ; for it may be a hot-house, an intermediate-house, 

 or a cold pit, just as you please, by a very simple regu- 

 lation. 



The Waltonian case is fashioned in the style of a garden 

 frame, the frame-work being of wood, with side and top 

 lights, a boiler and lamp for supplying heat, and a tray of 

 sand, on which the pots are placed. 



To give the reader an idea of the appearance of the 

 case, we will at once refer to the figure of one of sim- 

 plest construction, which we propose to describe partic- 

 ularly. 



The frame-work is of wood, and may- be either plain 

 deal, or any ornamental wood with elegant mouldings. 

 The front and the two ends are fitted with glass, the 

 back is wholly of wood, and on : the top are two lights, 

 laid on loosely. There is room inside for thirty-two four 

 inch pots, in four rows of eight each, and these pots stand 

 on a thin layer of silver sand, kept constantly damp, and 

 heated by the boiler immediately beneath it. The lamp in 

 front is a common tin one, burning colza oil. (This oil is 

 much used in Europe ; it is a very fine oil, burning without 

 smoke, and is pressed from rape seed (Brassica oleracca) ; 



