3l8 FRUIT CULTURE UNDER GLASS. 



Eegarding boilers, it is difficult to say which among many- 

 good ones are best. The upright tubulars are powerful, but 

 expensive, and require deep stoke-holes and good fuel. Some 

 of the improved forms of the old saddle-boiler are excellent ; 

 so are the cruciforms, which, like the saddles, bum any sort 

 of fuel, and are easily set. For amateurs requiring to heat 

 only one small house, the smallest form of Meiklejon's retort 

 is excellent and cheap. 



